Worn Valve Seats May Cause Engine Misfire on GMC Canyon
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 commentsGMC Canyon vehicles with this problem
Average mileage: 107,445 miles
(28,000 - 221,000)
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