Hello, I'm new here and new to the Duramax as I just purchased my first one after driving Cummins and Powerstroke powered trucks. The truck operated flawlessly the first 400 miles I put on it in 2 weeks. It is a bone stock RWD w/77k on it. Yesterday the MIL came on and it went into "limp" mode running on 4 cylinders w/codes P0205, P2149, and a pending P0742. I found some worn injector wiring at the alternator bracket and repaired it. The truck ran no better. I did the "ice pick" trick on cyl. 5 and the truck started and ran flawlessly. The MIL went out on it's own. I cleared the pending code and drove the truck but now it slips/hesitates badly between each gear change. The fluid is full/clean but I'm afraid to drive it anymore. Any suggestions? I would be eternally grateful.
