Runs great....but

[Dieselguy123]

Hey all, Just recently put all new injector return lines, o-rings, caps, etc, It helped a ton, It barely smokes any white smoke while idleing and it runs 100% better, but under about 1/2 throttle going down the road it smokes white(mushroom cloud) but if you back off the throttle it goes away, any ideas on what is wrong, I went to a local diesel shop and had my injectors tested and was told that they where in good shape, coulld this be timing,I/P....... -Brad-

 

[tonkadoctor]

I'd check the timing first. Diesel engines are very sensitive to timing and sounds like yours is retarded.

 

[kcw12]

I hate retarded trucks, its about like a car on alcohol. It gets drunk and you just cant keep a hold on it

 

[TLBREWER]

I hate retarded trucks, its about like a car on alcohol. It gets drunk and you just cant keep a hold on it