Question about 1998 Cadillac DeVille

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Temperature what is the ideal temp the 98 deville should run at

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  • joebahbah Mar 08, 2009

    my car runs at about 208 to220 fans work fine

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Normal operating temperature is between 185 and 205

Posted on Mar 08, 2009

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195 degrees faranheit

Posted on Mar 08, 2009

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1 Answer

What is overheat temperature 4 a 98 deville


aprox 215 to 220 deg. F. vehicle can run has high as 220F in a closed system. water boils at 212 F degs.
check for blown headgasket,look for exhaust gases in radiator jug. (will need CO tester) or blocked radiator.

Sep 21, 2011 | 1998 Cadillac DeVille

2 Answers

98 Camaro LOW running temp. I just recently purchased an all original, terrific running 98 Camaro Converible with only 86000 miles on it. Everything seems great and I've been driving it for weeks with no...


I would suspect either the temp guage or the coolant temperature sensor being inaccurate. The new thermostat is probably working good, or else you wouldn't have a very warm heater. If you have electric radiator fans, you might check to see if they are running all th time. Electric cooling fans should only come on when the temperature sensor reaches a predetermined coolant temp, or when the a/c or defroster is turned on. If the fan runs all the time, the engine would not reach normal operating temperature.

Feb 27, 2011 | Chevrolet Camaro Cars & Trucks

1 Answer

I bought a thermostat from advance auto parts for my 1999 cadillac deville but I was told that it should only be bought from a cadillac dealership but I used it anyway. I put the thermostat on and the car...


Who did all this work?
Was the water pump bad?
Was the radiator, so clogged it could not be cleaned?

What diagnostics was done?

Is the car actually over heating? That is where you start

All that work may have been for not

When you removed the stat,the temp never went up,only the gauge,
can not run a veh without the stat, the temp sensor needs it in there

Is the exhaust converter partially blocked?
Is the engine running rich

Have the data looked at.

Nov 24, 2010 | 1999 Cadillac DeVille

1 Answer

Running temp around 199 to 226 how hot should the 98 deville run


The temp. should stay within that range, but should never be allowed to run 0ver 240, if it does you have a problem

Feb 13, 2010 | 1998 Cadillac DeVille

1 Answer

Am trying to find out normal temp range 92 accord


The standard thermostat temperature is 195 F.

The ideal running motor running temperature is between 195F to 210F.

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Dec 10, 2009 | 1992 Honda Accord

2 Answers

No heat on my 98 caddy deville delegance?


do the heater core coolant supply hoses both get hot at the firewall in the engine compartment? if yes then you have a defective temperature control blend door actuater motor.

Oct 17, 2009 | 1998 Cadillac DeVille

1 Answer

Engine revs high after driving a while in the morning


Sounds like the theromstatic is sticking, making the temp to run higher than normal. The temp should be around 185 to 190 tops. Also check the flues on the radiator, make sure it is recirculation well once the theroms. open up. I not sur if this has a clutch fan or and elect.fan. But make sure it is pulling air thru the radiator well, to help to keep the motor cool.

Jan 23, 2009 | 1998 Cadillac DeVille

1 Answer

Over heating problem...


Could be a few things but either way, don't wait to have the cooling system checked out, do it now & possibly save $1000's later.
Check your coolant level first, make sure all belts are there. Rad fan should be coming on when it reaches operating temperature etc. Just bought it from who, a dealer? If it was a dealer head back to him a.s.a.p. and give him a chance to make it right, and pay close attention to what he says it is/was.

Dec 13, 2008 | 1998 Cadillac DeVille

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