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knocking

  1. 06-07 LBZ & LLY Duramax Powertrain
    I was driving down the road my truck shut off and then I pulled over tried to start it and it cranks over just sounds like shit either knocking or rattling but it’s loud and only starts for a second before it turns back off any ideas?
  2. 04.5-05 LLY Duramax Powertrain
    Gonna start this off with I’ve had this account for a year and still never know where to post these so I hope this is the right thread😥 My 05 LLY has 190k and I am used to the typewriter tick, at least I believe I am. This noise I have never heard in the 4 years I’ve owned it. Just had the...
  3. 06-07 LBZ & LLY Duramax Powertrain
    New to the forum and hoping to shed some light on an issue I’ve been having. for a while now I’ve been experiencing an uncomfortably loud ticking sound coming from my drivers side of my engine after replacing my injectors about 6 months ago. There are roughly 5000 miles on the new injectors and...
  4. General Discussion
    Hey guys so i have a 2012 gmc duramax slt, i have 72k miles on it. Its deleted and tuned 100hp, werlic custom air intake. New aftermarket tire rods super good quality. Over time this sound started coming on its a werid knocking sound. It only happens in the front of my vehicle, it only happens...
  5. 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...
  6. 911 Problems Forum
    first off truck is an 05 lly with 97000 miles, edge juice w/attitude 4"mbrp exhaust and lbz turbo mp. Other than that its pretty much stock i did head gaskets on it about 15000 miles ago and havent had any issues up until now. The problem happened about two weeks ago on my way to work in north...
  7. 01-04.5 LB7 Duramax Powertrain
    After my truck has sat all night at work I start it up to head home...and there is a very noticable knock for about the first five minutes or so of driving. Any ideas?
  8. 04.5-05 LLY Duramax Powertrain
    I have a 2004.5 duramax with the lly. I just bought the truck with 130,000 on it it runs awsome but I have a knocking or clicking noise under half throttle accelerating form 55 mph. It is really bothering me and don't know wat to do if u really step in to it when the turbo spools up it goes way...
  9. 04.5-05 LLY Duramax Powertrain
    New here and need some help. I have a 2005 silverado with 130K miles on it. It's a stock truck with no tuner. I haven't changed anything on the truck. Here's my problem. When the truck is cold it does fine. When it warms up is when it notice the problem. When maintaining my speed at...
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