2005 Cadillac STS Q&A
2005 Cadillac STS Question: coolant
I have a 1997 sts seville. When i drive for awhile i seem to be loosing coolant. If i drive for an hour it usually needs about a gallon of coolant. I cant find a leak or anything anywhere. Oil looks fine and i never find anything under car or in motor compartment. - jack4556
You probably have a blown head gasket, check the oil to see if there is a tan to brown milky substance on it and if it does the head gasket will need to be replaced. you can get an estimate here www.repairpal.com/estimator and find a shop here www.repairpal.com/directory - 427Chevy
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Engine Hot - AC Off