Overheating

40

Asked by Jul 13, 2016 at 05:06 PM about the 2000 Cadillac DeVille DTS Sedan FWD

Question type: Maintenance & Repair

Have changed thermostat car is
still running hot sometimes it
fluctuates and goes up and
down and I don't how to tell the
temperature of the engine 2000
Cadillac DeVille

7 Answers

40

Could it be the coolant reservoir

40

How do I get an answer

40

How do I find the answer to my question

21,130

If the thermostat is easy to get to remove and put hose back on then run vehicle to see if it still runs hot. If it still overheats the radiator or or cooling ports in engine are clogged needs to be flushed and is the fan coming on ? Also may want to clean radiator coil fins with a garden hose a nozzle if clogged with dirt and bugs will restrict air flow across the coil.

Best Answer Mark helpful
21,130

When you put in new thermostat did you bleed the air from the system ?

40

Yes

21,130

If vehicle does not overheat with thermostat removed you may have installed the t- stat wrong or you just got hold of a bad new thermostat.

Your Answer

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