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  1. 11-16 LML Duramax Powertrain
    Hey everyone, I’m new to the site and am having a PERE 01 code come up on my 2015 HD2500 Duramax 6.6L 4x4 I have about 110k miles on it. I erased the code and it seems to run fine, but now the code is coming up more frequently and puts it into limp mode. I can’t seem to find anything online...
  2. Transmission Shop
    Hey guys. Been working on a 2010 Chevy Duramax HD. Allison 6 speed. Ive replaced both Trim solenoids, and all shift solenoids. New Filters, new pressure switch assembly. Yet i am still getting a code p0877, Which says is a low voltage problem. Ive traced wires, replaced the internal harness, and...
  3. 2020+ LM2 Duramax Powertrain
    My son-in-law bought a brand new Chevy 3500 CC Long box two weeks ago. exactly one week after he got it (1000 miles on vehicle) it started making horrific knocking noises then shut off and would not start. Towed to dealer and they could figure it out (no codes) they drained all fuel and...
  4. 04.5-05 LLY Duramax Powertrain
    Ive had a few strange issues, possibly because mice urinated in the under fuse panel, I cleaned and used diaelectric grease the best I could Problem 1 The speedometer ready 80 mph at idle, Codes are as follows 674 0004 4800 0580 A480 which has been clear for a while 401 and 101, 74 also...
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