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  1. L

    LM2 Valve Clatter

    That’s good news if it’s non harmful and I will be looking into this I appreciate the heads up
  2. L

    LM2 Valve Clatter

    Wow sounds like I may need to try another dealership for a second opinion thanks for the info
  3. L

    LM2 Valve Clatter

    Update on my valve clatter Concern. I took my 2020 Sierra in for a clunk in the driver side Leafspring (for the second time) to find out there is a wide spread problem causing a 2 month back order of the required parts to fix it. which I quickly discover after only a few minutes on the...
  4. L

    LM2 Valve Clatter

    Because it was the first year this motor came out I decided to purchase the extended warranty the 100,000 mile 10 year
  5. L

    LM2 Valve Clatter

    I haven’t had a chance to get mine back into the shop but I’ve talk to the service manager at a different GMC dealership and was told the sound was normal coincidently I just spoke to another Duramax LM2 owner this morning amd he has a little valve clatter at low RPMs and low speed just the...
  6. L

    LM2 Valve Clatter

    I would definitely like what corrective actions are taken by gm
  7. L

    LM2 Valve Clatter

    That’s scary Silverado21, when I picked up my truck it had 5000 miles on it as a demo I had them change the oil and have put another 5000 on it .when I tried to get the service records from the dealership thinking they may have done the same thing they assured me they used the correct oil but...
  8. L

    LM2 Valve Clatter

    Similar to what Silverado 21 had I tried to purchase a couple quarts of 0W 20 Dexys D just to Keep in my truck for emergencies and the Worker in the service department of the dealership tried to sell me decos Gin to to as compatible oil
  9. L

    LM2 Valve Clatter

    With my main concern being excessive wear over the life of the vehicle on the valves and valve seats
  10. L

    LM2 Valve Clatter

    And I do agree something needs to be done
  11. L

    LM2 Valve Clatter

    Thanks for the reply that makes me feel a little more comfortable with my purchase.
  12. L

    LM2 Valve Clatter

    Hello to everyone ,I am new duramaxdiesels.com To start off the LM2 3L is my first diesel so I’m not familiar with the characteristics of a Diesel engine . That being said I also am having valve clatter at low speed going up a small hill in to my neighborhood.I also notice it on light...
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