Worn Valve Seats May Cause Engine Misfire: GMC Canyon Engine & Powertrain

Problem overview

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Replacement of the cylinder head may be required to correct this concern.

73 people reported this problem

38 comments

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GMC Canyon vehicles with this problem

4 model years affected

Average mileage: 107,445 miles

(28,000 - 221,000)

Repairs related to this problem

Check Engine Light Diagnosis & Testing

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Worn Valve Seats May Cause Engine Misfire on GMC Canyon

Problem overview

GMC Canyon vehicles with this problem

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