Engine code PO496 on 2012 GMC Acadia, possible causes?

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Check engine light on for a week. Took to autozone and was told to replace the fuel tank pressure sensor. If this is the problem, is it a DIY job or do I need to go to the dealership?

groupergal74e19f40 in Ocean Springs MS

Jul 25, 2017

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DaveJMon Jul 25, 2017

You could also have a faulty evaporative purge solenoid valve. Testing is needed to determine what the cause of failure is. The purge solenoid valve is something a DIY could replace, the fuel tank pressure sensor requires lowering the fuel tank, which I would allow a shop to do.

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RepairPal Certified shops can diagnose and repair your 2012 GMC Acadia. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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RepairPal Certified shops can diagnose and repair your 2012 GMC Acadia. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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DaveJMon Jul 25, 2017

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