GMC Yukon Repair Question
White smoke, runs rough
you are dealing with a blown haed gasket. the antifreez is entering the combustion chamber that is your white smoke. that will also couse the overheating problem. exhust gasses are entering you cooling system creating air pockets so the coolent does not flow properly
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2003 Chevy Malibu overheated Changed themostat had it flushed and still overheated. replaced thermostat again and ECT sensor. Now white smoke out of exhaust and rough idling and check engine light on
2 questions asked
White smoke usually indicates coolant is getting into the combustion chamber. Most likely, it is a bad head gasket.
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