Recent content by jp2000

  1. J

    LM2 Valve Clatter

    Yeah, I've been thinking funky pilot injection. Sadly I don't see any relearn procedures for that with gds2, seems to help some cars. Still need to verify they put the right injector codes in at the factory. Wonder if they could even mess that up if they wanted to. These things are just probably...
  2. J

    LM2 Valve Clatter

    Yeah, that's a reasonable explanation. The problem is mine just makes noises like this when warm under light load. Here's another more obvious clatter that is way easier to hear that sounds like my clatter. https://youtu.be/C6Ug6AS9Le0?t=67 But once again this guy is cold start. If you...
  3. J

    LM2 Valve Clatter

    Was watching this guy's youtube and can kinda hear much of the same clatter noise on his startup. Is that what yours sounds like? Not sure how to link vids, start up is at 49 seconds, real clatter comes in at 1:02 https://youtu.be/fRVjTby4cIs?t=49 2020 Silverado 3.0 Duramax Cool Weather...
  4. J

    LM2 Valve Clatter

    I also have this clatter on my 3.0 LM2. Gets pretty loud when slowly climbing hills. Going slow in a parking lot I can mostly avoid it happening. Sometimes right after cold start up if I put it in fwd or reverse with the parking brake on to hold it, it will clatter away while I search...
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