General Motors complaint: 15 GMC Sierra 2500HD
Filed 6 Jan 2022 by Ciprian
I have a 2015 GMC Sierra 2500HD with the 6.6L V8 Duramax with 94k miles and it has a faulty headgasket problem i have joined a LML Facebook forum that is based on this particular engine code and there are multiple drivers out there that are having headgasket failures at 50K miles and also reporting issues with the CP-4 Fuel pump that GM went with in this particular year model Duramax Engine.
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