04 duramax: Took it to the dealership, with what I beleived to be injector problems, did a diagnostic ($100.00) replaced the fuel filter and water seperater. Total bill $260.00. 2 weeks later had the same problem, took it back to dealer. Another diagnostic confirmed bad injectors. They replaced the injectors and now I have no power and black smoke looks like Mt. Saint Helens. Fuel mileage is lacking a little.
Need some info before I go back to the dealer

 

sounds to me like the turbo is shot or not properly working

 

does the engine have a miss to it?? possibly another bad inj.

 

I suppose that is possible. Not what I wanted to hear. But I the more I know now the better.
Is it possible that the injectors aren't set right? This trouble began the day they were replaced.

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The engine lopes a bit at idle.

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I was going south over the mountains into Grants Pass Or. I could just get about 50 MPH without causing a wreck behind me.

 

well its hard to say without seeing or hearing the truck.

 

I am takin it to another doctor tuesday for a second opinion. Every time I go to the dealership I feel like I need a hug afterwards, and I'm a little sore in the loins.

 

i know the feeling

 

Thanks for the input everyone


D-MAXIMOUS

 

Can you tell how much boost you are making? I would check IC, IC lines, and Turbo for sure. If its all black smoke, its just more fuel than air..

 

Well.... nobody suggested a plugged up air filter sooo... I throw that idea out there too.