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Walter2917

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  1. Walter2917
    Having the same problem here with my 2021 GMC Sierra with the 3.0L. Mine has only done it once so far and it was right at the 2000 mile mark. I took it to the dealer and they could not get the issue to recreate. They then did the “ECM reprogramming for crank no start or extended crank condition.” Which I think is the Technical Service Bulletin: #20-NA-218 from GM. But this was for the 19&20 model sierras. Nothing mentioned about 21s. So I don’t think this is the fix to the problem we are all having.
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