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i have found that with most cadillacs that run hot its because of a blown head gasket. have a compression test done first,check your oil to see if theres water in it!
I have a 1997 Cadillac Sedan Deville that did the same thing. I replaced the same things you have replaced on yours. The end result was a blown head gasket which I have found out is very common on older model Cadillacs that we own. After replacing the head gasket (which cost me parts/labor $2,200.00) at a reliable mechanic's shop that I have used for over 20 years, the car does not over heat. When I replaced the head gasket, my Cadillac had 131K. However, I have seen blown head gaskets on Cadillacs (similiar year/model) with as little as 50k at used car dealerships. Cadillacs are terrific vehicles but I've found out that bad head gaskets on older models are common problems. Good Luck...Hope this helps a little. A. Levisy in Virginia
The water pump is in the back of the motor on this one, it requires a special socket to remove and replace. If you have been scratching your head on this one, Cadillac had head gasket bolt issues, the bolts stretch and the gasket leaks internally.
Hello: You add the sealer to the tank on the passenger side under the hood. I don't recommend this as a proper repair. You may create problems with reducing the flow of coolant through the radiator. The best way is to replace the head gaskets. The tank has a radiator cap on it.
The correct way is to remove the head(s) have the head(s) checked for warpage repair as necessary then clean everything good and replace the head gaskets. There are some places that advertise a product that is suppose to seal a head gasket leak but remember if it seals the headgasket leak it may stop up your radiator, also it will just be a temporary repair
HI, you will know if your gasket(head) is blown if you see white smoke coming form the tail pipe during normal operating conditions like, acceleration and, idle. you may also see smoke coming ou the oil fill cap when you unscrew it after taking a long drive. this is the cause of the coolant mixing with the oil. If this is the case, replace these gaskets before the head are damaged asap.
manifold intake plenum 99 cadillac deville
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