1996 GMC Sierra Repair Question
Mileage: 118,000 miles.
Somkes under accelaration 6.5 Diesel
Answer
most common issue is the injectors?? how old are they and when did you have them serviced last??
If the injector timing is off, that will cause smoke as well.
Also, fuel quality is another factor. old, bad low cetane fuel will do the same thing.
Roy
changed a fuel solinoid driver also instaled a 8 or a 9 chip the stock was at a 7 does that effect it.
the driver, no, the chip should not effect it. is this a turbo?? if it is, there is another reason it may smoke as the seals may be bad and oil may be going out the turbo into the exhaust.
Roy
yes it has a turbo, is it posible the fuel lift pump is bad is there a easy way to check it, the injectors are original. the injector pump was changed at 80,000 after the fsd was changed it stiil never semed right. it is not consuming any oil it seames its getting to much fuel. thanks
lift pump just supplies fuel to the injector pump. it sounds like you have injector issues.
Roy
ok I just wanted to make shure I will order 450.00 In injectors for this thanks.