Diesel Doctor Message Board

From	Message
Auston 2/15/2002 13:21:41	Subject: Chevy 6.5 Turbo ? Message: Ill be driving along 70 or so and the check engine light comes on, the motor bucks a time or two and then the engine goes dead or has no power. I put it neutral and turn the key off and back on and most of the time its back in business. This is a recurring proplem with the truck. Thanks for any help.
Dave 1/07/2003 16:37:53	RE: Chevy 6.5 Turbo ? Message: I have the same problem with my 94 blazer They told me to have my injectors pop tested I have not done this yet let me know what you find out I will let you know the same
Auston 1/07/2003 16:49:06	RE: Chevy 6.5 Turbo ? Message: Actually, mine ended up being the Injector pump as most of these type problems are. To be more specific, the Electronics mounted on the side of the injector pump. My injectors were worn out too. Soon there after I replaced boths heads (cracked up bad enough to loose compression (engine missing on one cylinder) and therefore filling the crankcase with diesel. And shortly after that I lost the trans. In other words, I should have parked it at 269,000 miles. Im now at 290,000 and things are going well. I thought it was a pain to install the pump. Now I know its a pain to replace the heads :). Hope that helps.
AUSTIN 4/29/2003 00:10:28	RE: Chevy 6.5 Turbo ? Message: I HAVE A 95' 6.5 LITER IN MY 1 TON DUALLY AND IT DOES THE EXACT SAME THING, IT JUST DIES EVERY ONCE AND A WHILE. IF YOU ALREADY HAVE THE NEW STYLE INJECTION PUMP. YOU JUST WANT TO CHECK YOUR PMD (PUMP MOUNTED DRIVER) THE BLACK BOX ON THE DRIVERS SIDE OF THE PUMP. i ALSO HEAR THAT YOU CAN FIND DRIVERS THAT MOUNT ON THE FENDERWELL. I HAVE FOUND DRIVERS THEY GO FOR ABOUT 300.00 IF YOU FIND ONE CHEAPER PLEASE E-MAIL ME I NEED ONE.
Dan 5/02/2003 19:25:10	RE: Chevy 6.5 Turbo ? Message: I have a new injector pump and pmd and my truck still cuts out when its cold
Auston 5/03/2003 02:43:42	RE: Chevy 6.5 Turbo ? Message: Another thing that can cause it to quit running is the Oil Pressure Switch located behind the fuel filter. If switch bad or oil pressure low fuel feed pump can shut down causing the truck to quit running. A bad fuel feed pump is sometimes the culprit.
Todd 5/05/2003 17:13:08	RE: Chevy 6.5 Turbo ? Message: Just bought a 94 suburban with a 6.5 Turbo diesel to replace my 1991 with a 6.2 diesel. On the way back to Mpls from LA the thing developed a knocking noise at idle that is heard inside the truck. Drove 2000 miles and used no oil. The injector tubes when listened to with a wooden stick seem to be making alot of noise at the same interval as the noise. The injecters towards the fire wall seem to be abit louder. Does any body know if the injectors make a lot of noise when they reach the end of there life. Mechanic at the local Chevy dealer says there is something that causing the noise to reverberate into the truck he called it a non electrical grounding problem kind of like what would happen if an exhaust pipe touched the frame. Any ideas?
Auston 5/05/2003 18:22:08	RE: Chevy 6.5 Turbo ? Message: A real knock is usually caused by mechanical looseness. One that is most noticable at idle speed might be in the engine. If what your noticing is a miss check your dip stick and make sure your engine isnt putting diesel in the crankcase oil. This can happen when compression is lost in one or more cylinders. Good luck.
Todd 5/05/2003 23:40:03	RE: Chevy 6.5 Turbo ? Message: Don't you think if the engine was engine was putting fuel into the oil there would be some sign of an increasing oil level within the pan or dip stick reading after driving the truck 2000 miles? When I mentioned the truck did'nt use any oil I guess I wasn't completly telling the truth the oil level was going down ever so slightly. A freind of mine seems to think its a slight exhaust leak at the turbo? Can the turbo leak from within the exhaust side of the turbo into the intake side?
Auston 5/06/2003 22:14:48	RE: Chevy 6.5 Turbo ? Message: I would think that the turbo could leak from the exhaust side because thats were the pressure is. When my truck lost compression in one cylinder the oil level was 1/2 quart over full after 200 miles or so. I dont see how the turbo leaking could make the knocking noise. A bad connecting rod bearing could make a heck of a noise though. You could try draining your used motor oil through a filter of some kind to see if you have any metal particles there. Good luck with it.
todd 5/07/2003 08:05:03	RE: Chevy 6.5 Turbo ? Message: It's fixed!!! The source of the knock was the aluminum coolant tube that runs front to back between the valve cover and the intake. This tube has a aluminum bracket welded to itself that is attached or bolted to the intake manifold. The bracket was loose and rattling between the bolts and the manifold, thus transferring the knocking sound into the heater housing inside the truck.
chad 5/07/2003 18:40:52	RE: Chevy 6.5 Turbo ? Message: i have a 95 6.5 turbo aswell and it seems some times to stall or go into high idle. Also making alot more noise. the service engine soon light will stay on as well. I can shut it off and wait awhile and then the truck will run fine.
Auston 5/07/2003 19:59:24	RE: Chevy 6.5 Turbo ? Message: Sounds like the PMD. When mine would stall I could drop it in neutral and recrank it. After doing this trick a while it eventually craped out completely leaving me stranded and having to pay for a wrecker. FYI: I now have 296K miles on mine with original motor. I have replaced the Trans (2), Injector pump/pmd (2) and both heads.
6.5 chad 5/19/2003 19:05:13	RE: Chevy 6.5 Turbo ? Message: I have been having the same problem with my truck its a 94 2500 6.5 I will be going down the road and my truck will stall for just a split second and the service engine light comes on and my codes are 17 18 35 36 and 78 it started with 78 then it was 17 and 36 them 18 and 35 and when it does this it rattles loud like a ford LOL and some time when dirving in a parking lot or so on it will die. you can keep driving it and shut it off and the light goes of and it queitins back down and it fine for a while and some time it a little hard to start
artie 5/22/2003 17:24:57	RE: Chevy 6.5 Turbo ? Message: have a 1995 Silverado with a 6.5 turbo. After driving a while and accelerating- the check eng lite illuminates (related to turbo pressure?) and it seems to act like a gas job with a bad plug! Push on the accelerator and stumbling quits. Light goes out when pressure released on the pedal. I just bought the truck an it ran along good for about 20 miles then acted like it was running low on fuel, 136.000. Changed fuel filter & air filter etc. Too bad no boost pr. guage. Vac is 15" at waste gate.
6.5 chad 5/22/2003 18:42:23	RE: Chevy 6.5 Turbo ? Message: have you checked to see what codes you have. It sounds like your waste gate selinoid. That will be code 78. I had the same problam and the code said waste gate selinoid.
kenneth 5/23/2003 00:14:28	RE: Chevy 6.5 Turbo ? Message: motor has miss 1&6 seem to have low or no compression also used to get fuel in oil but replaced intake gasket and seemed to fix that problem is that possible? idles real rough levels out fair when racing up engine but still has a miss.
Auston 5/23/2003 00:33:27	RE: Chevy 6.5 Turbo ? Message: No. Intake gasket has nothing to do with fuel in oil, but a blown head gasket could. These engines are terrible about cracking the heads too. You cannot get by with no or low compression with these engines for very long. A no combustion situation simply allows the fuel to work its way around the piston rings and down to the crankcase. Good luck.
kenneth 5/23/2003 15:27:08	RE: Chevy 6.5 Turbo ? Message: if compression on 1&6 is week how can i tell if its the rings or in the heads?
Auston 5/23/2003 16:19:02	RE: Chevy 6.5 Turbo ? Message: I would think it more likely to be head or gasket related since it involves 2 cylinders. I lost #6 myself and suspect its because the heat can't escape that area. There is just too much stuff right there with the exhaust manifold, turbo, starter, sheilds, etc. Both of my heads were busted up though. Cracks were through the seats on both heads. You might try holding your hand over the oil filler hole while the engine is running to check for ring blowby. I've done this on tractors and it might work a 6.5.
Anonymous 5/27/2003 17:03:42	RE: Chevy 6.5 Turbo ? Message: Well I sprung the $38 for a Waste Gate Solenoid for my 1995 Silverado with no apparent change. Tested the lines-Vac Pump and tried mental telepathy! All to no avail. Was wondering if possibly it could be the Pressure Sensor or the Temp Sensor located on the top of the Intake? No worn or broken hoses & all wiring looks good. Open to suggestions! Artie
Anonymous 5/28/2003 18:30:01	RE: Chevy 6.5 Turbo ? Message: I need to find the waste gate on my 93 I have looked all over but I dont know a whole lot about the block. If I can find it, its goin bye bye. (I need smoke!)
Anonymous 6/16/2003 10:56:37	RE: Chevy 6.5 Turbo ? Message: I am looking at buying a nice 89 suburban with a 6.5L turbo deisel(150,000mi), the turbo had to be replaced, due to failing emmissions, he said something about fuel getting in the turbo (doesn't know what he is talking about, neither do I though). Anything I can do to chech the status of the engine, compression testing (special guage or gas engine comp. guage), check oil for diesel (what does that look like), anything else? Tyler
Anonymous 6/16/2003 10:56:49	RE: Chevy 6.5 Turbo ? Message: I am looking at buying a nice 89 suburban with a 6.5L turbo deisel(150,000mi), the turbo had to be replaced, due to failing emmissions, he said something about fuel getting in the turbo (doesn't know what he is talking about, neither do I though). Anything I can do to chech the status of the engine, compression testing (special guage or gas engine comp. guage), check oil for diesel (what does that look like), anything else? Tyler
Joshua Allen 6/24/2003 19:24:50	RE: Chevy 6.5 Turbo ? Message: I have a 94 3500 6.5L turbo diesel that seems to be having similar problems. The truck has been sitting with only an occasional crank for the last three years, so I expected some problems. Now she's a bitch to crank, and when it finally does, smoke bellows out the wastegate end of the turbo. So far I've been told it could be water in the oil or a bad fuel pump, but I'm thinking its directly turbo related. These Borg Warners run off their own oil line, right? Could oil in the turbo be causing the smoke? Or is it simply leaking from the exhaust itself?
Auston 6/24/2003 19:52:06	RE: Chevy 6.5 Turbo ? Message: The turbo has nothing to do with hard cranking. IF the smoke is white thats just all the fuel your pumping into the cylinder heads spinning the motor. If black then certainly thats probably oil related and your turbos seals could be shot. This problem your having starting the truck could be related to the PMD previously mentioned on this board. Its possible to connect a new PMD without physically installing it to see if this corrects the problem. Its takes patience and some skill but you can disconnect your present PMDs elec. connection and connect to a new PMD laying close by and they try cranking. Im thinking youll see a difference. OF course Im assuming you've already replaced fuel & air filters, and you have good clean fuel and charged batteries. FYI: I keep a spare fuel pump and spare PMD with me at all times in my high mileage truck.
Anonymous 6/25/2003 00:37:13	RE: Chevy 6.5 Turbo ? Message: 93 MODEL 6.5 LIGHT COLORED SMOKE JUST POURS OUT WHEN YOU FIRST START UP THEN IT CLEARS UP BUT WHEN YOU TAKE OFF AND TRY TO GAIN ENOUGH SPEED TO CHANGE GEARS IT JUST STARTS BOGGING DOWN BUT WHEN YOU GO AHEAD AND CHANGE GEARS IT RUNS PRETTY GOOD DOWN THE ROAD UNTIL YOU COME TO A HILL YOU CAN BE RUNNING 65 AND THE HILL WILL PULL IT DOWN TO 50 OR SO AND I AM TALKING ABOUT ON WIDE OPEN ROADS WHAT DOES IT SOUND LIKE? BY THE WAY WHEN IT STARTS BOGGING DOWN THE SMOKE STARTS TO APPEAR. ALSO WHEN GOING DOWN A HILL AND I LET OFF THE PEDAL IT STARTS SMOKING AGAIN.I HAD THE HEADS AND VALVES REDONE ABOUT A YEAR AGO BECAUSE ANTIFREEZE WAS COMING OUT THE EXHAUST. THANKS KENNETH
Mike 6/25/2003 14:41:03	RE: Chevy 6.5 Turbo ? Message: Have a 93 turbo diesel and it is pushing oil through the PVC cannister and down into the turbo charger. The PVC was stuck and I replaced it ($57) but there's still oil getting by. The engine seems to have a lot of pressure blowing out the top where the PVC goes in. I'm using about a quart every 1000 miles. Any thoughts on that? Could that pressure be turbo related?
Oscar Berlanga 6/27/2003 16:36:10	RE: Chevy 6.5 Turbo ? Message: In a similar situation with my '94 chevy 3500, the 6.5 needed a new injection pump (problem started at 116,000 miles, got diagnosed by chevy dealer, quoted $2100. Problem was intermittent at the time so I blew it off. At 126,000 miles, it quit totally. Towed and new rebuilt pump in Fife, WA cost $1780. Was told that Chev was offering free fix if before 120K miles. Took up with chevy showing the previous diagnostic from dealership. Got nothing. Too bad !
marty waight 6/29/2003 19:04:53	RE: Chevy 6.5 Turbo ? Message: i found a 1995 chevy 3500 crew cab with a 6.5 turbo, is there anyone with positive comments about this type of truck? thanks
Auston 7/11/2003 18:55:03	RE: Chevy 6.5 Turbo ? Message: I like these trucks, but you do have to work on them. I dont think you can buy one and drive it 500K miles without a few injector pumps, maybe a pair of heads, a pair of transmissions, vacuum pump or two, you get the idea. IE: I just put a second oil pressure switch on mine in the last 20K miles. When all is right these trucks run great and have plenty of power for pulling. Im hoping the engine block will last 500k without building because that and the rearend is all I have left thats original in my drivetrain.
Auston 7/11/2003 18:58:11	RE: Chevy 6.5 Turbo ? Message: I like these trucks, but you do have to work on them. I dont think you can buy one and drive it 500K miles without a few injector pumps, maybe a pair of heads, a pair of transmissions, vacuum pump or two, you get the idea. IE: I just put a second oil pressure switch on mine in the last 20K miles. When all is right these trucks run great and have plenty of power for pulling. Im hoping the engine block will last 500k without building because that and the rearend is all I have left thats original in my drivetrain.
Joshua Allen 7/13/2003 18:03:24	Assessing PMD Problems Message: After running through many theoritical situations with my 6.5L, it seems that the PMD would be the most likely problem from the information I see here. The smoke coming from the turbo at startup is more of a white gray color, so it has to be something fuel related. I've tried putting fresh diesel in it, replacing all the filters, and checking the oil for water. But before I go off spending $300 for a new PMD, is there anyway I can check it directly for failure? Should it be running a certain voltage or something that I can check with a multimeter, etc? Where is it located in the engine bay exactly?
Auston 7/13/2003 19:13:43	RE: Chevy 6.5 Turbo ? Message: The first thing I would do is to make sure to Fuel Delivery pump or Lift Pump as its sometimes called is working properly. A little know fact is that these engines can run (sometimes kinda bad) with this pump not even working. Its located just below the drivers door on the inside of the frame. With engine running reach down and hold this pump and you should feel it vibrating some since its a reciprocating pump. Its really an elec. coil moving back and forth and that pumps the fuel. #1 cause for this pump not working is the oil pressure switch located behind the fuel filter. It seems to have a start mode and a run mode. It will not work properly if switch is defective or no oil pressure. OK now to answer your question. The PMD is mounted on the side of the Fuel Injector Pump. With the engine cover off look at the engine from the drivers side and nestled down under and in front of the intake manifold is the pump. Maybe you could borrow a PMD or buy one from somebody off Ebay for about 1/2 of list. Now with some long needlenoise pliers, plug it in without removing the manifold or the old PMD and see what you have. Good Luck!
MikeH 7/18/2003 22:57:45	RE: Chevy 6.5 Turbo ? Message: I was just curious...I am interested in purchasing a 1998 2500 with 63,000 miles and the 6.5 in it. can anyone tell me if the 6.5 is a good diesel engine...just wiehging out all the facts ...i've heard both sides (good and bad)...such as its a beefed up 350 with a conversion kit....HELP any insight on this would be greatly appreciated. And by reading some of the problems online here ...it seems like its narrowed to 1991 to 1995.....any changes made after 95 to make it better or worse?? Thanks
MikeH 7/18/2003 22:59:09	RE: Chevy 6.5 Turbo ? Message: I was just curious...I am interested in purchasing a 1998 2500 with 63,000 miles and the 6.5 in it. can anyone tell me if the 6.5 is a good diesel engine...just wiehging out all the facts ...i've heard both sides (good and bad)...such as its a beefed up 350 with a conversion kit....HELP any insight on this would be greatly appreciated. And by reading some of the problems online here ...it seems like its narrowed to 1991 to 1995.....any changes made after 95 to make it better or worse?? Thanks
MikeH 7/18/2003 22:59:22	RE: Chevy 6.5 Turbo ? Message: I was just curious...I am interested in purchasing a 1998 2500 with 63,000 miles and the 6.5 in it. can anyone tell me if the 6.5 is a good diesel engine...just wiehging out all the facts ...i've heard both sides (good and bad)...such as its a beefed up 350 with a conversion kit....HELP any insight on this would be greatly appreciated. And by reading some of the problems online here ...it seems like its narrowed to 1991 to 1995.....any changes made after 95 to make it better or worse?? Thanks
MikeH 7/18/2003 23:01:51	RE: Chevy 6.5 Turbo ? Message: I was just curious...I am interested in purchasing a 1998 2500 with 63,000 miles and the 6.5 in it. can anyone tell me if the 6.5 is a good diesel engine...just wiehging out all the facts ...i've heard both sides (good and bad)...such as its a beefed up 350 with a conversion kit....HELP any insight on this would be greatly appreciated. And by reading some of the problems online here ...it seems like its narrowed to 1991 to 1995.....any changes made after 95 to make it better or worse?? Thanks
Joshua Allen 7/19/2003 16:50:02	RE: Chevy 6.5 Turbo ? Message: Well it's a powerful engine, that's for sure. I'm not so sure about "a beefed up 350", as it's a 396 big-block converted to diesel. But as you can see from all the posts on this board, it has its share of problems.
Bert 7/19/2003 22:15:15	I need more power out of my 6.5 turbo diesel Message: I have a 93 GMC dually crew cab 6.5 turbo diesel. I pull a 35' horse trailer and on long hills it gets hot enough for the check gauge light to come on, and doesn't have much power at all. What can I add to increase power? Has anyone tried the Stinger kit from Banks? Would an intercooler help? Any advice would be appreciated.
Auston 7/19/2003 22:23:54	RE: Chevy 6.5 Turbo ? Message: On a 93' 6.5 diesel I would check the Wastegate first and foremost. If your vacuum pump is half wornout therefore not providing enough vacuum to properly actuate the wastegate then theres your power problem right there. Of course pulling a loaded 35' horse trailer up long steep hills is asking alot of any pickup.
rchandler 7/20/2003 18:17:31	RE: Chevy 6.5 Turbo ? Message: Help i need a crank for a 96 model 6.5 this is the second truck we have had to break a crank. we only occasionally pull a couple of horses, and neither have been turned up. any thoughts
David 7/24/2003 19:04:06	RE: Chevy 6.5 Turbo ? Message: My service engine light comes on once in a while especially pulling. If I accelerate or decelerate then light goes off. I checked the codes and says wastegate solenoid fault. Vacuum pump recently replaced. Does this mean wastegate solenoid bad. Any ideas would be appreciated.
Auston 7/24/2003 19:15:11	RE: Chevy 6.5 Turbo ? Message: Read the comments on the thread "6.5 stalls". I had the same problem and you can read what was done to correct it and even get the part #s.
Linda 7/27/2003 22:23:58	RE: Chevy 6.5 Turbo ? Message: I bought my truck (lemon) new in 93. It needs towed/service all the time. I had a new engine put in at 30,000 miles this engine is junk too. Not to mention 3 trans. needing a 4th, cracked heads, fuel pump, you get the idea. I have a stack of invoices from Chevrolet. My truck stops running even at 60+ mph which is a thrill I'd rather not experience considering I have power steering and brakes. I didn't realize others were having this problem too. Shouldn't there have been a recall, or haven't enough people been killed?
Jim 7/28/2003 13:51:17	RE: Chevy 6.5 Turbo ? Message: I have 95 6.5 Turbo that the check engine light comes on under load at highway speeds. The dealer says the problem is the wastegate valve and an associated assembly. I would like to try to replace the wastegate valve myself. Anybody done this and of so is there anything special I should look out for? Thanks
David 7/28/2003 14:46:53	RE: Chevy 6.5 Turbo ? Message: I got the wastgate solenoid and cables to it. Appears to be easy to replace but haven't done it yet. Dont know if it will correct the problem yet. I can let you know in a couple days. Got parts from GM and cost 50 some dollars same price as Napa for solenoid and they (GM) didn't have to order it.
nathan miller 7/28/2003 22:01:13	RE: Chevy 6.5 Turbo (hot start problems) Message: I have a 1992 chevy 2500 with the 6.5 turbo and 147000 miles. i bought this truck in the dead of winter. it always started right up on the coldest mornings without being plugged in. now that its summer it doesnt want to start when its hot, it will start in the morning when it is cooled off but if you run it for more than about 5 minutes it won't start until it is absolutely cold(below 100 degrees) or you have to use a little ether. i have no idea what it is and would appreciate anybodies insight
Rick 7/30/2003 09:28:16	RE: Chevy 6.5 Turbo ? (power) Message: I purchased a 3500 with a 6.5 turbo in '94, I too have had the fuel injector pump replaced, four (4) times. The last pump is the new model/design/manufacture and has not given me any trouble for the last 25K miles, 107K present. The problem I have is power, in '94 I was towing a 8500# (loaded) trailer, I did this for four (4) years about five (5) times a year, distance ranged from 300 to 1400 miles (round trip), with speeds ranging from 65 to 80 MPH. I didn't tow anything from '98 to '02. This year I purchased a new trailer which weighs approx. 4500# (loaded), I cannot go over 63 MPH or I will be close to red lining and this is with a lighter trailer. No power, Can anybody help.
Auston 7/30/2003 15:59:20	RE: Chevy 6.5 Turbo ? Message: I would check the turbo charger first. If the turbo charger or wastegate isnt working properly it will affect pulling power.
Wes 7/31/2003 22:01:21	RE: Chevy 6.5 Turbo ? Message: I am thinking of buying an aftermarket intercooler for my 95 turbo diesel, any thing that I should worry about?
Wes 7/31/2003 22:01:24	RE: Chevy 6.5 Turbo ? Message: I am thinking of buying an aftermarket intercooler for my 95 turbo diesel, any thing that I should worry about?
J.D. 8/04/2003 02:08:47	RE: Chevy 6.5 Turbo ? Message: I purchased a 94 2500 6.5 turbo diesel with 67,000 miles ran fine until 113,000 miles new pump which GM reimbursed me for have had nothing but trouble since. New one lasted 32,00 miles. this one 20,000. wastegate is on exhaust under turbo. Look for vacume hose loose. Mine started dying and restarting no problem then cranking longer to restart then when sitting driveway will not start at all or even hit.
paulcra 8/04/2003 13:58:22	RE: Chevy 6.5 Turbo ? Message: Would engine running at redline at 63 mph be more of an indicater of transmission problems?
Timothy J. Sachse 8/04/2003 21:34:35	RE: Chevy 6.5 Turbo ? Message: I have a 95 turbo diesel that has had 3 pmd's replaced at the dealer. Now the truck has 112,000 miles on it and it is back at the dealer's shop. All the time with the same problems as in the past. This time the dealer also says that the turbo vacumn actavator is bad and the glow plugs need to be replaced. Total cost of about $1,500 . Are they being truthfull with me or pulling my chain ?
Auston 8/04/2003 22:11:57	RE: Chevy 6.5 Turbo ? Message: If they replace the turbo charger and the glow plugs, I guess that would cost $1,500.00. IF your just getting glow plugs and a wastegate solenoid Id get a second opinion.
paulcra 8/05/2003 18:23:39	RE: Chevy 6.5 Turbo ? Message: Dealer told to change injector pump and turbo relay would be $2700.00
Auston 8/05/2003 22:27:33	RE: Chevy 6.5 Turbo ? Message: In my area a rebuilt injector pump (latest update) can be bought installed for $1,500.00.
David 8/06/2003 16:16:33	RE: Chevy 6.5 Turbo ? Message: Thanks auston. That wastegate solenoid and cable took care of the error 78
Steve 8/09/2003 08:48:37	RE: Chevy 6.5 Turbo ? Message: I have a '94 Chev (3500) w/6.5 diesel which has a stall problem. Periodically when I start it it will run for a few seconds and then abruptly stall. I recrank it for maybe a minute and it starts again. It has never quit while in motion but only right after initial starting. It is unpredictable when it might happen and will always(so far) restart within a minutes cranking. I have been told to replace the PMD PDC and the oil pressure switch, but thats a lot of work and dough. Will the codes show the fault, and has anyone else had a similar problem? Also, can anyone direct me to the optical sensor which sends signal or power to the lift pump?
Auston 8/09/2003 16:02:22	RE: Chevy 6.5 Turbo ? Message: It sounds like the lift pump is not switching to run mode properly and that is usually due to a bad oil pressure switch which you can probably buy for less than $30.00. The switch is located just behind the fuel filter housing. Take a 17mm ratchet and remove the fuel filter housing bolts and then shift stuff around so that you can get to the oil pressure switch on the right side. They make a special socket for it but I use a 6pt. 1/2 drive deep well socket. I think its 1 1/16. I use a reducer to use a 3/8 drive ratchet with the big socket.I would start with that project first.
Paulcra 8/09/2003 17:54:11	RE: Chevy 6.5 Turbo ? Message: the diagram i have shows the optical/fuel temperature sensor to be on top of the injection pump. it should have an engine shutoff solenoid, and the OFTS is toward the cab from that. it is a short cylinder with a snapring at it's base.
Bert 8/09/2003 22:06:03	RE: Chevy 6.5 Turbo ? Message: My 93' 6.5 was stalling when idiling or after just starting. After cranking for 30 seconds or so it would always restart. After removing the fuel pump and testing it, it was not working at all, but the engine would still run. When I opened the pitcock to check for water in the fuel it broke the vacuum that was allowing the engine to suck fuel without a fuel pump (I guess). Wouldn't start again until the pump was replaced. I wouldn't have believed it, but it is so. New fuel pump was $98 at Pepboys. Runs great now and stopped stalling.
Auston 8/09/2003 22:14:52	RE: Chevy 6.5 Turbo ? Message: One note about it all. Ive had 3 pressure switches and 2 lift pumps go bad on my truck. Not one optical sensor has given me a problem. When you first turn the ignition switch to on position you should hear that solenoid "click". Good luck.
Paul 8/10/2003 01:07:23	RE: Chevy 6.5 Turbo ? Message: I bought a 95 6.5 that had a broken block, but had a lot of power. I replaced it with a crate 6.5 , the truck is gutless now. I have developed a knok, I guess from the vacume pump. The turbo also has a small amount of oil in it. I put 4" pipes but that only helped a little. what do ya' think will cure the power problem?
Rick 8/11/2003 11:57:14	RE: Chevy 6.5 Turbo ? (no power) Message: I had wrote the letter on 7/30/2003 (no power). After Auston had suggested my problem was either the turbo unit or the wastgate I checked it out. I pulled the air cleaner plastic off at the turbocharger and found the impeller fins full of oil, and there was a little puddle at the bottom. Another thing I noticed is for the past year I haven't heard that turbo whine, I used to hear, when I would step off the accelerator. This is my second question, can anybody make a suggestion based on experience on a company to purchased a remanufactured turbo unit from to replace the present one. I have been on the web looking but any suggestions would be great appreciated. I also purchased a boost gauge that I will install with the new turbo unit so in the future I will not wonder where my pulling power went. Thanks, Rick
Ken 8/11/2003 17:40:24	RE: Chevy 6.5 Turbo ? Message: Bert and Steve I have had the same stalling problem after starting. GM is covering a new fuel pump, but now they say it needs a new lift pump for it quit on them after they test started it with the new fuel pum in. They want 380.00 from me. Is this a rip off?
Auston 8/11/2003 17:57:11	RE: Chevy 6.5 Turbo ? Message: I bought my last one from partsamerica.com for $68.23 delivered to my door. Its part # E3309. Took me 20 minutes with a 5/8 and 3/4 wrenches to replace it. FYI.
BLAZE 8/11/2003 20:50:10	RE: Chevy 6.5 Turbo ? Message: Can any one confirm the fuel presssure value,of fuel pressure under load at pump inlet. Has any one bought a new GM engine block. My question is does the new block have piston cooler noozles that come in the new 2000 6.5l blocks?
Artie 8/11/2003 22:37:21	RE: Chevy 6.5 Turbo ? Message: Does anyone out there have a source for a PMD at a reasonable price? I cannot find it listed in Parts America-PepBoys-or Advance! Still have the code 36 and periodic "hic-cups" will run fine at times - other times feels like a 36 Ford with two dead plugs- SES Lite will illuminate- give it some fuel and out goes the lite and away we go! There are a couple past messages 5/22 & 5/27.
Steve Lange 8/12/2003 01:22:34	RE: Chevy 6.5 Turbo ? Message: I bought a 95 6.5 turbo March of 2003. I to have a loss of power and a knock. Not sure if the turbo is working. How does one with no gauge. I will also be checking the wastegate on the exhaust. Can that be removed and still have the truck run descent? I am informed that chevy has a known problem with the torque convertor bolts coming loose and hitting the fly wheel. I will be check that this weekend. Just put $1400.00 on new front tires, alignment, front breaks and Pitman arms. Handle much better.
David 8/12/2003 10:59:10	RE: Chevy 6.5 Turbo ? Message: 95 with abs code 86. I don't know the exact error message but something about short in abs light. Anyone with an Idea to what that means? I figured if it was the light on dash why would it come on if it was shorted?
Myrlin 8/13/2003 08:36:54	RE: Chevy 6.5 Turbo ? Message: Has anyone tried the Stinger kit from Banks?
Bert 8/13/2003 21:53:15	RE: Chevy 6.5 Turbo ? Message: I bought one last week form Camping World for $750. It will be installed next Thursday for another $350. I'm sure hoping it helps. It is supposed to add 26 more HP. The way my truck runs I figure that will double the power. If you email me in two weeks I'll let you know if it is worth $1100.
Lora 8/13/2003 22:43:39	RE: Chevy 6.5 Turbo ? Message: "95 chevy diesel (AZ)starts and runs great in am but in PM it stalls, use to re-start easily, but now will not start till morning again. Turbo does not kick in in the valley but when going to cooler parts of AZ (mntns) the turbo will kick in. Any suggestions? Also what are codes 33 and 78?
Auston 8/13/2003 23:22:54	RE: Chevy 6.5 Turbo ? Message: I would suggest you might have 2 different problems. 1) Wastegate solenoid not working properly, It may be bad or the elec. connector going into it. Vacuum pump not pumping. Vacuum line broken are some possibilities. (Tip: The solenoid vibrates when working properly.) 2) The other thing might be a bad PMD. The Electronic Driver mounted on the pump. Read messages from 7/24/03 above about wastegate.
vince 8/14/2003 16:26:46	RE: Chevy 6.5 Turbo ? Message: Steve, Auston HELP!! PLEASE Just bought this truck 96 chev dually 6.5 l diesel, turbo, last week and bought it knowing it needed work, it would not even hardly idle when I bought it, drove it home 70 miles and it ran a ton better, idled pretty good also. Question is this dude has a TON of blow bye and it has not been doing it long you can tell by the the oil build up around it. The smoke when you stand on it is dark which doesn't bother me but when just cruising down the road it has alot of white light blue smoke, found a cracked vacuum line going to the pull off valve for the turbo, I assume this is called the wastegate vavle??, fixed that and seemed a little better, today I took the stock exhaust off and and put on a 3" strait exhaust( NO Restrictions at all ;), seems to run a ton worse now, didn't change the smoking at all, but took effort to get to 70 mph, as where before it had probably more power than any 6.5 I had ever drove.also I do beleive the heads have been replaced from looking at them and I know the intake gasket has been replaced also. #1 My questions are what is up with all the blow bye? is it just wore out? (152,000 miles) #2 Does a 6.5 diesel need back pressure in the exhaust? #3 I know how to rebuild gasoline engines is a diesel that much differn't? #4 Should a chev diesel turbo "whine" as much as say a powerstroke or cummins? mine does not. Thanks so much for the help I have already received and the help I will get in the future!! I just pulled the intake tube off the turbo and it is full of oil! I assume that it could be coming from all the blow bye, but don't know for sure. What is the best way to clean it out and can I run the turbo safely without the tube from the pvc cannister hooked up to it? can a bad pvc cannister be causing the blow bye?
Auston 8/14/2003 16:54:24	RE: Chevy 6.5 Turbo ? Message: The smoke is probably fuel sometimes, oil sometimes, and both at times. Its possible to crank with intake off and watch for fuel forced through cracks of a knocked out valve seat. In your case, I dont know if it will tell you anthing. It does sound like youve lost compression with all the smoke and lack of power as well as rough idle. Check compression with a proper diesel compression gauge on all cylinders. That will probably tell you alot, then you can get to work. Exhaust sizing is the least of your problems right now. The turbos seals may be leaking the oil you see there and in the intake. No, you cant hear the turbo on that engine as much as the others. Good luck with it.
Vince 8/16/2003 07:51:09	RE: Chevy 6.5 Turbo ? Message: Just finally talked to the old owner and this what he told me He said that the truck has had a 2000 model motor put in it and ran great until one day it redlined the RPM's at 4000 and stayed there for 4-5 minutes and them shut itself down, he said it started right back up and idled correctly rpm but it had a miss and smoked way to much that is why he traded it on a a new truck. Any idea's ????? he said that he thought that it may of burnt a hole in piston but this was only his opinion and had not had it diagnosed anywhere. Thanks Auston for your help!!
LORA 8/16/2003 09:08:19	RE: Chevy 6.5 Turbo ? Message: '95 CHEVY DIESEL, SAME PROBLEMS AS ALL ABOVE. TWO TROBLE CODES, WHICH ONE IS THE WASTE GATE SYLENOID BUT THE OTHER IS CODE 33. WHAT IS CODE 33?
Anonymous 8/16/2003 15:12:53	RE: Chevy 6.5 Turbo ? Message: I am relatively new to this diesel stuff, but at the rate I am going and if it keeps up(assuming I don't kill myself first) I am going to be a frigging expert I have 1993 6.5 L T.D 4X4 crewcab. Shortly after I first got the the truck it started smoking,had blow by, then got hot. I figured it was just shot and did not know anything about diesels. A buddy stopped by, shook his head and laughed at me! He raised the hood started poking around - Took pvc off of the valve cover,it was full (throughly cleaned it),wastegate rod was stuck, just seized up with rust,lube it and changed air filter. Several hoses were leaking slightly which added up to alot, I guess! In short a poorly maintained truck. Moral of the story, I'm not sure! But it isn't worn out yet, it is still working and unfortuneatly so am I.
Anonymous 8/16/2003 15:16:33	RE: Chevy 6.5 Turbo ? Message: I am relatively new to this diesel stuff, but at the rate I am going and if it keeps up(assuming I don't kill myself first) I am going to be a frigging expert I have 1993 6.5 L T.D 4X4 crewcab. Shortly after I first got the the truck it started smoking,had blow by, then got hot. I figured it was just shot and did not know anything about diesels. A buddy stopped by, shook his head and laughed at me! He raised the hood started poking around - Took pvc off of the valve cover,it was full (throughly cleaned it),wastegate rod was stuck, just seized up with rust,lube it and changed air filter. Several hoses were leaking slightly which added up to alot, I guess! In short a poorly maintained truck. Moral of the story, I'm not sure! But it isn't worn out yet, it is still working and unfortuneatly so am I.
Rob 8/17/2003 18:29:03	92', Chevy 6.5 Turbo ? Message: Can anyone suggest a good service manual? It seems that many of these problems are very common and they must be documented somewhere. Kind of a list of common problems and procedures to check them out? FYI, 92' 6.5td with 70k miles
Rob 8/17/2003 18:29:21	92', Chevy 6.5 Turbo ? Message: Can anyone suggest a good service manual? It seems that many of these problems are very common and they must be documented somewhere. Kind of a list of common problems and procedures to check them out? FYI, 92' 6.5td with 70k miles
Auston 8/17/2003 21:22:23	RE: Chevy 6.5 Turbo ? Message: Trouble code 33 on a 95 diesel is according to Chilton the "EGR Control..Pressure/Baro sensor circuit high".
richard 8/18/2003 00:37:48	RE: Chevy 6.5 Turbo ? Message: I OWN A 97 C3500 WITH 85000 MILES ON IT. HAVE REPLACED FUEL INJECTOR PUMP, AND OIL PRESSURE SWITCH. MY TRUCK STALLS OUT AT THE MOST INOPPORTUNE MOMENTS, LIKE WHEN DOING 70 ON THE INTERSTATE. IT WILL USUALLY RESTART AFTER COMING TO A COMPLETE STOP AND SHUTTING OFF IGNITION. MY AC FAN ALSO QUIT WORKING. I UNDERSTAND THAT THE POWERTRAIN CONTROL MODULE IN 96 AND NEWER TRUCKS CONTROLS THE FUEL LIFT PUMP AND AIR CONDITIONER. HAS ANYONE REPLACED THE PCM TO CORRECT THIS PROBLEM, OR SHOULD I START WITH THE FUEL LIFT PUMP?
Auston 8/18/2003 08:13:07	RE: Chevy 6.5 Turbo ? Message: At 70 mph your injector pump can probably pull fuel right through your lift pump. Most likely culprit is the PMD or also known as the Pump Mounted Driver.
vincent 8/18/2003 15:09:32	wastgate ? Message: I have a 94 6.5 turbo been a great truck 180,000 mi but the turbo cuts out in hot weather 85 and above, replaced airflow and temp sensor with no results purrs like a kitten in cooler temps, poss wastgate solinoide? Chevy want $230 for replacement, any help would be great.
Auston 8/18/2003 15:33:46	RE: Chevy 6.5 Turbo ? Message: CHeck the subject "6.5 Diesel Stalls". On 6-20 and 6-24. Posted what was done to correct similar Wastegate problem.
Artie 8/18/2003 15:42:44	RE: Chevy 6.5 Turbo ? Message: Waste Gate Solenoid $38. and change at G.M. Dealer- they must be talking something else. Still no replies on a scource for a PMD at a reasonable cost?
Auston 8/18/2003 15:49:15	RE: Chevy 6.5 Turbo ? Message: I dont think there are any reasonable cost sources for PMDs except maybe the largest swap meet in the world, EBAY!
Artie 8/18/2003 16:03:07	RE: Chevy 6.5 Turbo ? Message: No thank you on E-Bay !!! Been stuck on an Inboard Boat Engine and this 1995 Silverado !! All 100% perfect! Ha- cracked block on the I/B and the 6.5 Messages have been posted- dont dare get more then 20 miles from home! Previous owners KNOW NOTHING!! $6000.00 worth of learning! One of you guys MUST have bought a PMD ??
Auston 8/18/2003 16:42:54	RE: Chevy 6.5 Turbo ? Message: I paid about that for mine too but I knew Id be working on it sometimes. New that truck is probably over $30K. If you do the swap yourself your probably $250 to $350 away from having a new PMD installed. Thats still a whole lot cheaper than new. IF you can drive a vehicle 10K miles for every $1K dollars spent Id say your doing real good. Most people cant do it. Ive been able to by buying used trucks and working on em when needed. Look at that way.
Vince 8/18/2003 20:16:35	RE: Chevy 6.5 Turbo ? Message: A little update on my problem, driving home tonight and it redlined and STAYED there for probably 3 minutes MAN DID IT SMOKE!!!! temp. pegged out and then it shut down let it set 20-30 minutes and put water back in it and started it up and drove her home, seemed to run about like it did but I did not drive it far enough to know if it cracked a head or block or anything else, AUSTON what would make this thing redline and run away with it self? and if it does happen again is there any way to shut it down? ALSO do you know say if I had a 94 Chev cab & chassis with a 454 how tough would it be to swap it over??
Auston 8/18/2003 20:54:29	RE: Chevy 6.5 Turbo ? Message: So thats twice that same motor has done that, right? Im surprised it still runs to be honest about it. Didnt you say previously that its running rough with alot of blowby. If your loading the engine up with alot of unburnt fuel who knows whats happening. That fuel may be kicking off and making the engine go crazy. The way I understand it the Injector pump (specifically the pmd)has a logical governor built in that will reduce fuel to the cylinders thereby reducing rpms when redline is detected. Thats whats suppose to happen, but PMD cannot control fuel already delivered! Call a good authorized Stanadyne Pump Shop and ask them about it. If you keep driving it Im thinkin your gonna blow the works. Driving it that way could be dangerous. As for a conversion: Everything about it is different. Gas & Diesel engines are controlled differently by their respective computers so the wiring harness and the all the trimmings are different. Heck, even the fuel tanks are different. Gas has intank pump, diesel does not. I suspect that last one could be overcome though. Hope that all helps. Check compression!
Anonymous 8/18/2003 22:00:47	RE: Chevy 6.5 Turbo ? Message: How do I check the compression on it, I called several shops today EVEN the Chevrolet shop and NO ONE would be willing to even look at it!, It does not look that hard to work on and I have a repair shop but I know nothing about diesels! The other truck I do not think would be that big of a deal to swap because I have the entire truck even a HD disk brake dually rearend! mainly the transmission bolting up to the motor. The HD is a automatic and this one is a 5 speed, and Yes Auston it is the 2nd time this has happened the this motor that I know of! ALSO thanks a ton for all the help!
Auston 8/18/2003 22:32:04	RE: Chevy 6.5 Turbo ? Message: Let me state first that Im giving advise on this board from my own personal experience from owning one of these trucks with alot of miles on it. Im just a shadetree mechanic that looked to this board for help (Feb 2002) and have tried to give back to it when I think I can contribute. Compression check on one of these is done with a high pressure compression tester made specifically for diesel engine testing. I know Snap On has it and Im sure the others do too. On the 6.5 the compression can be checked through the glowplug threaded hole. Only one certain adapter works for it. Some of these are quite hard to get to and under the turbo special extra long adapters (can be homemade even) may be needed to accomplish this.
Aaron 8/19/2003 01:27:45	RE: Chevy 6.5 Turbo ? Message: I am currently looking at a used '99 suburban with a 6.5L turbo. I drove it today and it runs pretty good. But I noticed that the oil pressure at idle is 30 psi and under acceleration in goes up to 50 psi. This doesn't look right to me but I don't have any experience with the operation of diesel motors. Is it normal for the oil pressure in a 6.5L turbo diesel to change that much depending on rpms?
Auston 8/19/2003 08:15:27	RE: Chevy 6.5 Turbo ? Message: Mine does the same thing except its 40 and 60. Ive seen it with a few different oil pressure switches so I think thats normal.
Dave R 8/19/2003 09:34:51	RE: Chevy 6.5 Turbo ? Message: I've got the same problems that many have previously mentioned and I think I've done all of the checks that were recommended. Can anyone tell me if I'm missing somehting? Here's my story- I have a '95 Chevy 6.5L Turbo Diesel, Auto, 119K. I recently replaced the pump mounted driver to take care of the stalling. The problem I have now is that the Service Engine Soon light still turns on and off frequently, even after clearing the codes. It also seems that the turbo won't kick in every once in a while. The codes given are 32, 33, 36 and 78. After clearing, the same codes return after a little driving. Dealer tells me they are just history codes and that I shouldn't worry about it. As long as the light comes on, I'm going to worry. I've checked the vacuum pump (23mmHg @ idle), wastegate holds vacuum, EGR holds vacuum, all vacuum lines hold vacuum. All solenoids (turbo, EGR vlv, EGR vent) appear to be working as they start clicking/vibrating when I unplug and replug. There is ~17mmHg vacuum at wastegate at idle. Vacuum at EGR fluctuates from 0 to 18 mmHg every couple seconds (at idle). The lift pump is working. There is a little white smoke at start-up or when I floor it. There is a little puddle of oil in the turbo intake in front of the impeller fins. Otherwise everything else seems to be OK. I notice the light frequently comes on when cruising at a constant speed and will shut off when I let off the pedal (or turn cruise control off). It will also sometimes turn on when idling in gear. Will turn off if I put it in park or drive away. Any idea why the light doesn't just stay on? Are the problems that set the codes intermittent? Any help would truly be appreciated. Thank You
Auston 8/19/2003 09:50:13	RE: Chevy 6.5 Turbo ? Message: I would suggest one thing you might be missing is the fact that the problem with the 78 code (wastegate Solenoid) is not a constant problem but rather its intermittent. My electrical connector was bad, but only showed up at highway speeds. The Check Engine Light would come on and if I let off the accelerator the light usually went out.
Jesse 8/20/2003 22:58:48	RE: Chevy 6.5 Turbo ? Message: I have a 98 dually extended cab. I put on one of the banks stinger kits a year ago. I did it at home, and it went relativly good. the only snag was the connection at the Cat converter. I had to cut the end off to get some space and had to have it welded back on at the muffler shop. In all the power improvement on my truck can be noticed going up hill under heavy load. It will hold about 5MPH faster going up the same grade as before. The boost gage and Pirometers are also nice add in's so you can watch your boost and exhaust temp. I got about a 1.5 MPG increase as well. My total cash output was $850. for the kit shipping and the extra welding.
kyle 8/21/2003 00:31:24	RE: Chevy 6.5 Turbo ? Message: i have a 98 K3500. it pours black smoke if the engine is over about 2400 rpm and im trying to pick up speed or if the tranny downshifts it starts smoking. it makes a cloud behind me its embarrasing. also it is stalling out on me now (this just started today) i can let it sit for a few seconds and it will run again for about 5 minutes and shut down again. also had a bad waste gate silenoid, replaced that but didnt help anything but the SES light. i need help.
matt 8/21/2003 21:47:07	RE: Chevy 6.5 Turbo ? Message: I'm pretty lucky I guess,152000 and replaced injector pump 1 time GM paid for that one,other than that a pretty cloud of black smoke on a hard pull with a 30 foot goseneck. Keep truckin'
rich 8/22/2003 10:20:34	OFTS Message: I have a '94 6.5L that is shutting down only when the engine runs for 15mins or so. If only idling, it does not shut down. If allowed to cool, the engine will restart fine. Would replacing the OFTS fix this problem or is it a more serious PMD problem? Is there a quick test procedure to check the OFTS before I fork out $ 155.00 for this part?
CHRIS 8/22/2003 23:07:08	RE: Chevy 6.5 Turbo ? Message: SAME OLD THING........ I HAVE A 1995 6.5 TURBO DIESEL AND THE THING JUST STARTED STALLING.TOOK SOME ADVICE FROM HERE AND CHECKED THE LIFT PUMP,NOT WORKING.SO I CHANGED IT AND IT RAN FINE FOR 2 DAYS.THEN STARTED THE SAME OLD THING OF STALLING.TOOK IT TO MR.GOODWRENCH AND HE NOW SAYS IT NEEDS AN INJECTION PUMP $2500 AND ALSO HE SAID THAT GM IS REPLACING UP TO 125,000 MI. SO MY QUESTION IS THERE ANY SPECIAL TOOLS FOR THIS JOB AND SHOULD I GO NEW OR REMAN? ANY HELP WOULD HELP.THANKS BY THE WAY MINE HAS 130,000
Auston 8/23/2003 08:59:48	RE: Chevy 6.5 Turbo ? Message: Is your new lift pump running? It may not be. If I were you Id 1) Replace Oil Pressure Switch first and see what happens. Still stalls? 2) Get a PMD and connect it to the pump while still in the truck and see if that fixes it. 3)if that doesnt work Id find the pump shop that builds those pumps in your area and get a quote on a pump from them. It takes a scan tool (set up to do it) to set the timing properly. As for new or reman. I dont know if they are still building em new. It may be that only reman is out there, but you do want one with the latest updates. Hope that helps.
James 8/24/2003 10:23:26	RE: Chevy 6.5 Turbo ? Message: I have a 98 chevy with a 6.5. Bought it 2 years ago and has been a p.o.s. ever since. Always smokes black but run ok when bought. I had the injection pump replaced last summer and has not run right since. Injection timing is fine. At take off it has no power, no smoke or noise, but all the sudden it will take off and smoke black like crazy. Running down the road power cuts back and forth like there is a valve closing and opening. My codes are mass air flow circuit,egr recirculation flow insufficient, turbo sensor circuit range/performance problem. Need some suggestions of truck will take a trip off of a cliff. Thanks!
James 8/24/2003 10:42:57	RE: Chevy 6.5 Turbo ? Message: I have a 98 chevy with a 6.5. Bought it 2 years ago and has been a p.o.s. ever since. Always smokes black but run ok when bought. I had the injection pump replaced last summer and has not run right since. Injection timing is fine. At take off it has no power, no smoke or noise, but all the sudden it will take off and smoke black like crazy. Running down the road power cuts back and forth like there is a valve closing and opening. My codes are mass air flow circuit,egr recirculation flow insufficient, turbo sensor circuit range/performance problem. Need some suggestions of truck will take a trip off of a cliff. Thanks!
kyle 8/24/2003 13:21:22	RE: Chevy 6.5 Turbo ? Message: i have a 98 K3500. it pours black smoke if the engine is over about 2400 rpm and im trying to pick up speed or if the tranny downshifts it starts smoking. it makes a cloud behind me its embarrasing. also it is stalling out on me now (this just started today) i can let it sit for a few seconds and it will run again for about 5 minutes and shut down again. also had a bad waste gate silenoid, replaced that but didnt help anything but the SES light. i need help.
Scott 8/25/2003 11:08:32	RE: Chevy 6.5 Turbo ? Overdrive? Message: I have a 1993 6.5 L.T.D. I removed the fuel filter canister, leaking, R & R, & then I cleaned up the wiring in general along firewall, bellhousing & down towards tranmission. After that my truck started not going into overdrive. Is there something (sensor) in the intake back there that I could have broke that could be causing this? Also, what does tell the truck to shift, my understanding there is not vacuum like in a gasser?
axel 8/26/2003 06:45:53	RE: Chevy 6.5 Turbo ? Message: A girlfriend of mine bought a 98 C3500 Long Box Dualy 6.5LTD, now SES comes on. Has anyone the complete list of trouble codes, that he/she could send me by E-mail? To get a read out on the codes, which pins do I have to short on the ALDL?
artie 8/26/2003 07:22:16	RE: Chevy 6.5 Turbo ? Message: http://www.troublecodes.net/GM/94-95_65.shtml Go here and sort out what you want to know! Or maybe just try WWW>troublecodes.net
Wes 8/28/2003 00:30:30	RE: Chevy 6.5 Turbo ? Message: I am working on a 1994 2500 with the 6.5 diesel engine. The symptoms are as follows. You'll be going down the road the check engine light comes on and the engine goes into backup fuel(no power, no turbo, code 18 and 35)Turn the key off and restart it runs fine. But sometimes it will totally die going down the road. It gets a check engine light and codes 18 and 19. PMD??? I already changed the oil pressure switch and fixed all the fuel leaks. Did notice that the battery cable from the right battery to the left one was corroded bad. Cleaned it up and it took care of the long crank time starting problem. But it still stalls out whenever it feels like it. Also, I noticed that when I plugged the trailer lights into it it died out. No codes. I think this was a result of the brake control being hooked to the left battery, which had a bad cable. Would the truck stall out if one of the batteries was bad?? One other thing I noticed is that the ignition switch doesn't always come back all the way into the run position after starting it. Could this cause the lift pump to not work thus causing it to stall while going down the road and popping up these codes???
CHRIS 8/28/2003 00:37:21	RE: Chevy 6.5 Turbo ? Message: IS THE PMD MOUNTED ON THE SIDE OF THE INJ PUMP? THE LITTLE BLACK BOX CORRECT OR NO. THANKS
Wes 8/28/2003 16:15:08	RE: Chevy 6.5 Turbo ? Message: Yes it is mounted on the side of the injection pump. Think it is getting to hot?? It seems to do it more when it is warm out or when pulling a long hard grade.
Auston 8/28/2003 16:53:24	RE: Chevy 6.5 Turbo ? Message: When my PMD first started going bad the engine would go dead right after starting it in real hot weather. Then a month or so later it would go dead at highway speeds. I could always get it to recrank. Then one day it just died and left me stranded. Interesting thing about the PMD is that it gets very hot itself. Being attached to the pump is designed to help cool if off.
Wes 8/28/2003 17:44:47	RE: Chevy 6.5 Turbo ? Message: I guess I'll be ordering the remote mount setup. Where is the best place to mount this? Where is the resistor, that is supposed to be swapped to the new PMD, located? Where is the best place to get the remote mount setup? Do the #'s have to match, from old to new, when changing the PMD?? The PMD that is in this truck is #34264. The extra PMD's I have are numbered 30214. Can they be interchanged?? How about the injector pumps can they be interchanged? I was just given two injector pumps, complete, from the Chev. dealer. They were warranteed ones that were supposed to be destroyed. The truck I'm working on is a 1994 2500 with the vin code F. One of the pumps is supposed to be out of a 1997 the other one I don't know what year.
Auston 8/28/2003 18:25:03	RE: Chevy 6.5 Turbo ? Message: I dont know about remote mounting but the resistor is in the connector part of the PMD. they make a special tool to swap it. #5 is the most common Im told. As for swapping PMDs, Ive swapped 3 in my truck and didnt pay attention to #s or resistors and they've worked fine. There are two different pumps installed on the 94 so compare the numbers. Higher fuel rate was delivered by some 94 pumps. If you need one, yet get the other, the truck will not run good. There are several #s on the pump itself and your not looking at the one you need to. If I remember right one of the pumps is a 5288. I found this, might be interesting to some. Shows how the resistors work. http://www.thedieselpage.com/reviews/FSDCooler.htm
Wes 8/28/2003 23:19:09	RE: Chevy 6.5 Turbo ? Message: Have you found that just replacing the PMD has taken care of the problem most of the time?? Even if you only put it back onto the pump instead of remote mounting it?? This guy only wants to keep it another year and then he's buying a new truck. Is the remote mount setup worth the money??? I believe it is only another couple hundred bucks to get it.
paul 8/28/2003 23:28:03	RE: Chevy 6.5 Turbo ? Message: The truck I have had the PMD mounted to the firewall. Cant say how long it lasted, but , they spliced wires and left old PMD on pump. It died shortly after I bought it.I would think that without a heat sink that this was not the best move. I know it had to be a lot less work than putting it back on the inj. pump.
Kyle James 8/28/2003 23:57:28	RE: Chevy 6.5 Turbo ? Message: i have a 98 K3500. it pours black smoke if the engine is over about 2400 rpm and im trying to pick up speed or if the tranny downshifts it starts smoking. it makes a cloud behind me its embarrasing. also it is stalling out on me now (this just started today) i can let it sit for a few seconds and it will run again for about 5 minutes and shut down again. also had a bad waste gate silenoid, replaced that but didnt help anything but the SES light. i need help.
Kyle James 8/28/2003 23:58:17	RE: Chevy 6.5 Turbo ? Message: i have a 98 K3500. it pours black smoke if the engine is over about 2400 rpm and im trying to pick up speed or if the tranny downshifts it starts smoking. it makes a cloud behind me its embarrasing. also it is stalling out on me now (this just started today) i can let it sit for a few seconds and it will run again for about 5 minutes and shut down again. also had a bad waste gate silenoid, replaced that but didnt help anything but the SES light. i need help.
Kyle James 8/28/2003 23:58:30	RE: Chevy 6.5 Turbo ? Message: i have a 98 K3500. it pours black smoke if the engine is over about 2400 rpm and im trying to pick up speed or if the tranny downshifts it starts smoking. it makes a cloud behind me its embarrasing. also it is stalling out on me now (this just started today) i can let it sit for a few seconds and it will run again for about 5 minutes and shut down again. also had a bad waste gate silenoid, replaced that but didnt help anything but the SES light. i need help.
Mike 9/01/2003 21:04:29	RE: Chevy 6.5 Turbo ? Message: I have a 95 with 115,000 miles. Check engine light started flashing on and off and the code is number 62 - Turbo Boost Sensor Circuit Low. Does anyone know what this means and what is the fix?
Dodge man 9/02/2003 04:56:49	RE: Chevy 6.5 Turbo ? Message: I recently bought 95 suburban with 96000tml is this car still under warranty, if is, is the any cost for me or to they just fix the trouble no question asked style. It is acting weird, most of times it takes long start, to start and only takes less than 2000rpm and have very little power, sometimes no trouble. Service engine soon light is on, I have codes 17 high resolution sensor fault, 18 pump cam reference pulse error, 36 and 37 inj pulse with error long response. What is pump cam code 18? If somebody who expirience same trouble can answer thanks T.I
Wes 9/02/2003 23:06:30	RE: Chevy 6.5 Turbo ? Message: Your vehicle has faulted back to the back up fuel system. When it does this it loses the turbo boost and thus the low power problem. It's also called the limp mode. Many things can cause this. First check the wiring where the wires for the PCM goes into the fire wall. The wires may be rubbing on the AC metal line. Also check your lift pump inside the frame below the drivers door. Make sure it is working. If not it could be your oil pressure switch that's bad. All in all it is probably your PMD on the fuel injection pump that is bad. If it is I would take this to a Chev. Dealer and get it checked out. The injection pump is warranteed for 120,000 miles/11 years. I believe that the only thing that you have to pay for is the fuel system being cleaned (lines and fuel tank) but they may also warrantee this too. Definitely take it in if you check the earlier items and find nothing wrong.
kyle 9/03/2003 00:39:05	RE: Chevy 6.5 Turbo ? Message: would somebody please answer my question this time.i have a 98 K3500. it pours black smoke if the engine is over about 2400 rpm and im trying to pick up speed or if the tranny downshifts it starts smoking. it makes a cloud behind me its embarrasing. also it is stalling out on me now (this just started today) i can let it sit for a few seconds and it will run again for about 5 minutes and shut down again. also had a bad waste gate silenoid, replaced that but didnt help anything but the SES light. i need to know what to check and what could be wrong. also does anybody know were i can get a used axle shaft, none of the yards around here have one. thanks
kyle 9/03/2003 00:39:34	RE: Chevy 6.5 Turbo ? Message: would somebody please answer my question this time.i have a 98 K3500. it pours black smoke if the engine is over about 2400 rpm and im trying to pick up speed or if the tranny downshifts it starts smoking. it makes a cloud behind me its embarrasing. also it is stalling out on me now (this just started today) i can let it sit for a few seconds and it will run again for about 5 minutes and shut down again. also had a bad waste gate silenoid, replaced that but didnt help anything but the SES light. i need to know what to check and what could be wrong. also does anybody know were i can get a used axle shaft, none of the yards around here have one. thanks
Phil 9/03/2003 11:38:14	RE: Chevy 6.5 Turbo ? Message: kyle might be your pmd gone bad. try replacing it, its the little black box on the side of the injection pump, that should hopefully take care of stalling. im not sure about the smoke problem, possibly injection pump related, but i would think that would code the ses light. sorry, no clue about the axle shaft, try ebay or a yahoo search, for a 1 ton truck they might be hard to find used
bowtie fan 9/03/2003 23:03:28	RE: Chevy 6.5 Turbo ? Message: does any one know if i can just change my insturment cluster from one with 135,000 to one with 113,000 miles to get my injection pump warranty taken care of. it had 125,000 when i bought it.........gm put the shaft to most of us when they made this crazy thing so why not repay the favor........ i really like the truck but the fuel system sucks......if it works i will have a insturment cluster for lend.....thanks for every ones help!!!!!!!!!!11
Jim 9/04/2003 22:20:36	RE: Chevy 6.5 Turbo ? Message: You guys need to head over to GM-Diesel.com and join up, post your problems over there. Much more activity on the 6.5 to get these problems soved fast.
Anonymous 9/05/2003 08:21:53	RE: Chevy 6.5 Turbo ? Message: Thanks- I did - absolutely correct. In regards to THE BEST PRICE and Service on the FSD/PMD here is the man to contact!Buddy Stasiak, Mgr. Metro Fuel Injection Phone 1-413-789-6600 Fax 1-413-789-6611 Visit our website www.metrosvc.com
ben 9/10/2003 19:43:07	RE: Chevy 6.5 Turbo ? Message: I'm looking at buying a 95 Chevy Silverado 3500 with 6.5 TD. This truck has 152,000 miles on it. What problems do I need to look for before I buy this vehicle. I've never owned a vehicle with a diesel engine so any advice will help. BEN
artie 9/10/2003 23:04:46