P0674 MISDIAGNOSED! Replaced glow plug with no change! What could it be? 2008 GMC Sierra PART 3?
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Breaking Down This HUGE L5P MYTH About GLOW PLUGS (Please Don't Do This To Your L5P!)
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Changing 2018 L5P Duramax Denali Coolant Reservoir to fix low Coolant message
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How To Test and Change A Glow Plug In A 6.6 Liter Chevy/Gmc Duramax Diesel
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2005 Silverado Duramax- Wheel Speed Sensors, EGR Flow, Glow Plug Module - P0401, P0404, P0670 - P2
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GMC Sierra is one of the best trucks on the road! Why does the CAR WIZARD like this truck so much???
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How to replace Glow Plug #4 on a Duramax LLY error code P0674
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