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injector knock.
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  1. 07.5-10 LMM Duramax Powertrain
    First timer here! Recently picked up an 07.5 Lmm with 295,000kms on her. Took the kids on a 5,000km trip towing a 4500lb trailer and ever since I’ve been getting a knock on startup and accelerating until it slips into 4th gear or so. I borrowed a laptop from our heavy duty dept at the college to...
  2. 04.5-05 LLY Duramax Powertrain
    Ok guys I have a lly thats bone stock. 175000 miles on the truck. I have a random knock that sounds like a bad injector. The conditions have to be just right for it to knock. Light throttle and cruising down the road. Even then it doesnt happen all the time but is becoming more frequent. Get on...
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