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  1. 911 Problems Forum
    I have a sound in my engine @1300 rmps that is making me lose my hair by the second. i can hear it right at take off throttle, very short and quick and then i can get the sound in 1-2-3 gears 3rd being the worst. it will make this sound as long as the rpms stay at 1300. i have no clue what is...
  2. 911 Problems Forum
    Ok yesterday i was driving on th freeway when my truck just suddenly lost power had the feeling like when the cruise control disengages and the check engine came on and it couldn't accelerate anymore now its making what sounds like a piston knocking noise does this sound like and injector...
  3. 04.5-05 LLY Duramax Powertrain
    problem showed its ugly head again, last time dealer said it wasn't covered but im gonna try again. cause as ive seen it on here most people have it covered someone who could get my the tech service bullitin would help
  4. 06-07 LBZ & LLY Duramax Powertrain
    I have an 06 LBZ which at 1300 rpm makes a hissiing/sucking sound. It does not make the sound at 1350 or above or at 1250 and below. I had it in to GM and they replace a tube which I couldn't get a description on and that was supposed to fix it. Well no fix and sound still present. One of the...
1-4 of 4 Results