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Amedee, GMC Technician
Category: GM
Satisfied Customers: 24145
Experience:  ASE certified tech with advanced level specialist. Wisconsin certified emissions state inspector
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2005 GMC Sierra 1500: check engine light..a gas cap that I..tighten

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2005 GMC Sierra 1500
How do I clear or turn off the check engine light? It emanates from a gas cap that I failed to tighten.

You can clear the check engine light with a scan tool, code reader or even by disconnecting the battery for 10 minutes.
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