My 02 deville keeps overheating and blowing weak heat can anybody help
You have 1 of 2 problems eather it's low on coolant or its the head gaskets going bad I've seen this 100 time or more time in my shop I had for over 37 years and its not just caddies its anything with coolant and head gaskets in it . There not completely blown yet but the end is coming soon what happens is its blowing compression into the cooling system and it is aerating the system . A good way to test it is when it's cold put a pressure gauge on the radiator ,
.where the cap goes start it up if it starts building pressure in a couple of minutes that a good sign . If you don't have a gauge you can feel the upper hose if it gets hard before it gets warm that's also a sign ... Does it have hi mileage? Any more question please feel free to ask .
Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
Rippy is a Cadillac, Hummer, Saturn & Saab dealership - family owned and operated in Wilmington, NC since 1946 We offer all forum members discounts on parts and freight - e: firstname.lastname@example.org: 800-RIPPY-22
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