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jacbwils

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Everything posted by jacbwils

  1. Has been stated several times in this thread and there are bulletins for the issue. Check all of the connections around the battery and distribution block. By check I mean tighten every one of them. Look for any black marks on the connections.
  2. I’ve had an intermittent no start issue for past month now and dealer hasn’t been able to find the issue. Replaced the ECM, EBCM, fuel pump driver module and performed every software update. I finally found the cause: there was a nut not fully seated on the battery distribution block on top of the battery. It’s the nut directly above the positive terminal with a small red wire attached to it.
  3. Got my truck back with the new underhood fuse block. It’s running again, but I’m not exactly confident that was the only problem.
  4. I have a 2020 Sierra with the LM2 diesel. At 150 miles it stalled while driving and multiple crank-no starts. Sounds similar to other posts. Dealer replaced the crankshaft position sensor and has new fuse box ordered. Will see what happens next.
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