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  1. 01-04.5 LB7 Duramax Powertrain
    I need help trying to diagnose an issue I have with my 04' LB7. I've noticed two issues with it. Right away when accelerating it feels like it has zero power and then when still trying to accelerate it takes off like a bat out of hell until backing off the accelerator and then issue is gone...
  2. 01-04.5 LB7 Duramax Powertrain
    What is the repair for these two codes? P0088 and P0089. 2003 Chevrolet 2500HD, stock, 265,000 miles.
  3. 01-04.5 LB7 Performance Parts Discussion
    Just got 4 injectors replaced. put on thr air dog pump separotor the 150 gph one and doesnt smoke at adle anymore:) but i threw this code a day later. a very well trusted GMC mechanic did the work so im almost positive its not that he told me not to worry but seeing the light on is like seein my...
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