2000 cadillac deville

Asked by Jan 11, 2017 at 07:43 PM about the 2000 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

I have a 2000 deville  water pump tensioner went
out and broke belt car overheatet replaced both car
still over heating no leaks could it be the
thermostat car never overheated  before

4 Answers


Should have a trusted shop look at this, it is possible the heads may have warped causing a bad head gasket. But always check the least expensive part so ya, I would try the thermostat first. Also a compression test would indicate if a head gasket is blown. And it could be as simple as purging the cooling system from air.

2 of 2 people found this helpful.

Check to see if your water pump is really pushing water. It might not leak but it may not be circulating your coolant.

what is replaced both? did you replace the water pump and the tensioner?... once you overheat a cad it never really runs right again..

also...if you have a doubt in your mind about a block thermostat that is less than 5 bucks why not change out cheapest parts first?

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