Engine Misfire Due to Worn Valve Seat on Cadillac Escalade

Problem Description and Possible Solution

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Our technicians tell us the misfire may or may not be felt while driving. They further recommend that both cylinder heads be removed and thoroughly inspected and repaired as necessary.

Problem Data
RepairPal Verified
Average mileage: 200,000 (200,000–200,000)
1 model year affected: 1999
2 people reported this problem
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Acts like all the plugs are fouled out