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Randy B.
3/24/2004 21:06:29
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 Subject: 6.5 turbo rattle
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Message:
I have a 1995 Yukon with a 6.5 143000 miles. It starts fine, Runs great, but sometimes it rattles like the lifters have colapsed. you can be driving it and it's fine. Then it starts rattling. Then stops. The oil pressure is fine No Codes showing. What's up with this truck?
 
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GmDieselTech
3/24/2004 22:23:13
| RE: 6.5 turbo rattle
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Message:
check the rocker arm nylon centering buttons, especially on the turbo side.
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Randy B
3/25/2004 08:14:14
| RE: 6.5 turbo rattle
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Message:
What Should I be looking for?
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GMDieselTech
3/25/2004 10:05:47
| RE: 6.5 turbo rattle
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Message:
Look for the retainer buttons to be missing or moved allowing the rocker arm to travel in ways not intended, this tends to happen on the turbo side of the engine as the heat dries the buttons out faster and they get brittole and break.
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Happy Motoring-David
GmDieselTech@Yahoo.com
Administrator at Yahoo Autos Groups 'ChevyGmcDiesels"
http://autos.groups.yahoo.com/group/chevygmcdiesels/
Moderator at Diesel Doctor
http://www.dieseldoctor.com
Copyright 2004 GmDieselTech@Yahoo.com
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mike
Guest
3/27/2004 09:56:45
| RE: 6.5 turbo rattle
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Message:
hay Dr. You said retainer clips on turbo side. Is this A good idea to replace all 8 clips once you get the valve cover off? Also, what about those fuel lines? do you tweek them out of the way? or cut,and then put couplers on, or disconnect them at pump? DO you need a special GM tool to replace clips (buttons)? My thanks to Dr. and everyone out there, your info. and knowlage has been cost saving
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GmDieselTech
Guest
3/27/2004 10:50:09
| RE: 6.5 turbo rattle
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Message:
replace all 16, remove fuel lines, do NOT bend do NOT cut. you can replace the nylon buttons without a tool.
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