Customer Satisfaction Program
Chevrolet technical service bulletin GCUS-3-314 for 2016 Chevrolet Corvette, 2015 Chevrolet Silverado 2500 and 2016 Cadillac Escalade and others.
- Bulletin number
- GCUS-3-314
- Component
- Fuel system, gasoline
- Summary
- 15638 - Customer Satisfaction Program. Certain 2016 model year Cadillac Escalade, Escalade ESV, Chevrolet Corvette, GMC Yukon Denali and 2015 Cadillac Escalade ESV, Chevrolet Silverado LD, GMC Sierra LD, and Yukon Denali XL model vehicles equipped with 6.2L engines (RPO L86 and LT1) may have engines built with cylinder head gaskets in which the head gasket stopper ring was off location. The gasket may fatigue over time leading to the possibility of a leak into the combustion chamber after several thousand miles. Possible symptoms include: a check engine light for P0300 Misfire, possible combustion gas leaks to coolant resulting in overheating, over-flowed coolant bottle, milky-colored engine oil in the crankcase, piston scuffing and if the vehicle is continued to be driven in this condition, engine failure. Dealers are to replace the left and right side engine head gasket.
Vehicles covered
- Chevrolet Corvette 2016 2016
- Chevrolet Silverado 2500 2015 2015
- Cadillac Escalade 2016 2016
- GMC Yukon Denali 2016 2016
- Cadillac Escalade ESV 2015-2016 20152016
- GMC Yukon Denali XL 2015 2015
- GMC Sierra Denali 2015 2015
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