Question about 1999 Cadillac DeVille

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Car running above normal tempature. It is at 222 and I replaced the thermastat.

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When engine is hot very carefully undo the clip for the topmost hot pipe to vent any air trapped in system.

Posted on Jul 30, 2010


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My 2000 Buick Lesabre blew water hose and I replaced it and thermastat but its still runs hot

Dis you bleed the cooling system of trapped air? If not do that first.

Jan 29, 2013 | 2000 Buick LeSabre

1 Answer

My tempature gauge will register normal tempature after engine runs and heats up but will drop back to no tempature.

ZI suggest you have the engine thermostat replaced, it is likely sticking open and allowing the engine to cool down. The thermostat is under the cover that the upper radiator hose connects to on most GM engines.

Jul 24, 2012 | 2005 Chevrolet Silverado

1 Answer

Heater will not heat and I replaced the thermastat

you could be having a problem with the tempature acuator under dash board

Nov 23, 2010 | 2000 Ford Expedition

1 Answer

Don't know what to do.

Have you checked the rad to see if you are getting good antifreeze circulation. You may need a new water pump if the circulation is poor. Check to see if all you rad fins are tight & in good shape. It could be the radiator is losing it's efficiency & may need replacement. Hope this helps you. Good luck!

Jul 30, 2010 | 1999 Cadillac DeVille

1 Answer

My 99 300m is overheating but the tempature gauge shows normal

i have a grand voyager 1999 and it temputure is running on the 3quater mark on the gauge is this right....

Jun 07, 2010 | 1999 Chrysler 300M

1 Answer

My 2000 VW Cabrio tempature light is flashing. I

you will probably need to replace the tempurature sensor it's self the car is not actually getting hot.

Oct 02, 2009 | 2000 Volkswagen Cabrio

1 Answer

Thermastat varies in Tempature

Sounds like the thermostat that is in the vehicle is a 180*. It should be a 195*. If this is not the case then check the temperature gauge sending unit.

May 21, 2009 | 1997 Buick LeSabre

1 Answer

4.6 lit cadillac overheats although I replaced the thermostat

did you try replacing the radiator cap and the temp sensor?

Mar 31, 2009 | 1997 Cadillac DeVille

1 Answer

Car tempature goes up only on hills.

I think your cooling system has air in it, Try and find a place around the thermosat that can be opened a small valve it may just look like a nut, with your car running and radiator cap off, turn the heater on and fill with coolant till it runs out the valve with out air, then top off the radiator to full. also top of the coolant overflow tank. I think this may solve your problem. Merry Christmas!

Dec 26, 2008 | 1995 Honda Accord

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