My Cadillac is overheating

Asked by Apr 23, 2019 at 05:32 PM about the 1998 Cadillac DeVille

Question type: General

Okay I have changed my radiator thermostat water pump
heater core radiator cap and temperature sender and my
Cadillac is still running hot and I don't understand why I
don't have no antifreeze in my oil and I don't have no white
smoke coming out the tailpipe so what else could make my
Cadillac run hot and the cooling fans don't come on till after
it gets to 255 degrees

1 Answer

114,155

Have the cooling system tested for combustion gasses. If combustion gasses are present it's a blown head gasket. Your '98 deVille has a Northstar engine. They all blow head gaskets sooner or later! The only way to do the head gasket job is to remove the engine and transmission from the bottom of the vehicle. There's no other way! You're looking at upwards of $3500 to fix it. Hope that helps! Jim

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