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Recent questions tagged sierra

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2 answers 14.7k views

On my 2013 GMC Sierra 2500HD 6.6L I'm getting a P21DD error code, ever heard of this??

asked Jan 20, 2017 by Dave

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1 answer 656 views

2000 GMC Sierra 5.3L with engine code P1415, what are the possible solutions?

asked Dec 31, 2016 by anonymous

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2 answers 676 views

2006 GMC Sierra 1500 Crew Cab 5.3L V8 with engine code P0449

asked Dec 29, 2016 by Kevin

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1 answer 902 views

2007 GMC SIERRA

asked Dec 29, 2016 by Tony

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1 answer 20.0k views

Where is the Oxygen Sensor located on a 2008 GMC Sierra Denali 6.2L?

asked Dec 24, 2016 by Juan

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