QuestionI have a 93 DeVille 4.9 and today steam started coming through the defroster vents then soon after the Hot Engine lite came on. I pulled over, shut down the engine and was towed home. Checking the coolant reserve, and radiator, nothing was showing. No leaks on the ground. Radiator hoses look OK, and have a 2 year old radiator. What should I look for???? Have had the car for 4 years, and have used the radiator pellets when needed. This is the 1st overheating issue. 129000 miles. Thanks.
AnswerHello,
Sounds like a heater core failed and has a leak inside the car.
The worse problem is that you drove it hot, which you cannot do on an aluminum engine. The possibility for catastrophic engine damage is great now. It does not take much for these Cadillac engines to self destruct when over heated.
You can cut the heater hoses in the engine area on the passenger side. Buy a flushing T and install it to each hose. Make sure the screwi on cap is tight. This is a temporary bypass for the heater core. Add anti-freeze/coolant not water.
If you are real lucky you did no harm to the engine. If so, could cost you thousands in repairs. I get an average of four Cadillac overheats a week.
It may be a Cadillac, but the truth of the matter Cadillac has not made a decent engine since 1981 when the engine was cast iron.
Good luck
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