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P0674 MISDIAGNOSED! Replaced glow plug with no change! What could it be? 2008 GMC Sierra PART 3? Lmm Glow Plug

Last updated: Sunday, December 28, 2025

P0674 MISDIAGNOSED! Replaced glow plug with no change! What could it be? 2008 GMC Sierra PART 3? Lmm Glow Plug
P0674 MISDIAGNOSED! Replaced glow plug with no change! What could it be? 2008 GMC Sierra PART 3? Lmm Glow Plug

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