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1-5 of 5 Results
  1. General Discussion
    Happy Holidays. Hello all! I have an 03 Chevy Duramax 6.6 LB7 that was smoking like crazy. No engine codes, no other issues. Purchased from Dieselogic.com new injectors and glow plugs. Changed out, no problems (did not break injectors) you could see the top of old injectors were corroded and...
  2. 01-04.5 LB7 Duramax Powertrain
    Alright this is a Bible post but i need help on a customer’s truck. customer states the following- Super long story but I'll try to hit the basics here. 2003 lb7 federal emmsions truck, deleted, tuned, I rebuild top end with reman injectors, cups, drop in ddp 64 mm, fass lift pump, intake...
  3. General Discussion
    Okay. So. 2012, GMC 3500 desiel dually. I had a 2007 Chevy, same model, that had no exhaust brake and it stopped my damn trailer better. I bought this "new" 2012 truck for the exhaust brake and the "better" towing capacity. It has no suck back and stop. It is weak as well. Everything on it is...
  4. 01-04.5 LB7 Performance Parts Discussion
    I've added a AFE Stage 2 Si Cold Air Intake to my '03 LB7 and have had slow throttle response ever since. I can go back to my stock air box and response returns. AFE guys have been great but cannot explain why this is occuring to my truck. I have tried cleaning the Mass-Air Flow sensor with CRC...
  5. 911 Problems Forum
    I bought a 2002 duramax with a blown motor, I bought a motor for it out of a rollover that seemed to run fine when I went and looked at it but now that its in my truck it has no power and smokes like crazy-grey smoke at idle and black on acceleration. At first I though it would be the common...
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