1995 Cadillac DeVille Q&A
1995 Cadillac DeVille Question: Blown head gasket Northstar 4.6L
Loosing 2 gal. of coolant about every 30 miles. - Visitor
the more you drive it, the more damage you do to the motor. you need a shop to do a leak down test to confirm the number of cylinders effected by the failure. then they can give you a bid based on ther results. then after this is done, they need to find the original issue as to why it overheated. the head gaskets are a result of the overheating not the reason for overheating. it will be costly to the point that it may require a new or rebuilt motor. thanks for using repairpal Roy - mastertech6371
This could always be your timming cover gasket that needs to be replaced. - Visitor
Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and dam...
The water pump and/or the plastic side tanks on the radiator may leak causing a loss of coolant. The engine may overheat due to coolant loss. Continued coolant loss after external leaks have been r...