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Check Engine light comes on when accelerating up a hill.

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Usually comes on when cruise control forces speed up to climb a hill. Always resets when switch is turned off and back on.

Sierra 1 in Plantersville AL

May 25, 2015

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What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 1991 GMC C1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 1991 GMC C1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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Check Engine light comes on when accelerating up a hill.

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What are the best GMC repair shops?

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