Diesel Doctor

[pwrchild1]

what controls the turbo acuator? Sometimes the rod starts going up and down like crazy and the truck will hardly run,then itll straigten out an be fine.Is there a solenoid that im just not seeing?Thanks,Troy

[pwrchild1]

I figured it out for anyone else that has had a simuliar problem ,it was the v.p.o.d. (variable pressure operating device)newer 60 series DD have 1,older ones have 2 .Its easy to replace yourself 1 wire connector,2 airlines,an 2 bolts.