SOMKES UNDER ACCELARATION 6.5 DIESEL
1996 GMC Sierra • 118,000 miles
This truck has a lot of black smoke comming from the exhaust when you rev it up or just going down the road. If you could give me some pointers on where to start diagnosing this that would be great.
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.
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.
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
Jun 12, 2012.
Jun 12, 2012.
Ok I just wanted to make shure I will order 450.00 In injectors for this thanks.
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