Question about 2002 Cadillac Deville

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Why is a 2002 Cadillac Deville dts running hot? But the temp neddle never goes over half way, the rpms go up and the car will not coast when i let off of the gas pedal.

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You should take your mechanic advice on your Cadillac heating problem and check your thermo sensor. If still you are not able to solve your problem you must check with an automobile expert or you can also find some expert advice here online at

Posted on Apr 29, 2013

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Posted on Dec 25, 2009


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May 21, 2014 | 2002 Cadillac DeVille DTS

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Change battery

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Dec 06, 2013 | 2002 Cadillac Deville

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2002 cadilac dts devile running hot

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2001 cadillac dts no heat at idle car starts to run hot

Maybe the water pump has been eaten away

The GM Dexcool hasn't worked out well for the last
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May have to do the water pump & go to a universal

If your saying it is only a cabin heat issue then your going
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Mar 03, 2013 | 2001 Cadillac DeVille

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Half of my radiator is hot and the other half cold, my 2001 cadillac deville running hot

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Sep 08, 2012 | 2001 Cadillac DeVille

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Why would a 2002 cadillac dts shut off while driving

check the crackcase, or crankshaft circuits A or B.. or both..not sure.. which one. but i had similar problem,, i went and bought a code reader and that helped me out alot, with what i had to change.. good luck..

Nov 15, 2011 | 2002 Cadillac Deville

1 Answer

I have a 2002 cadillac recently ran hot because the water pump tensioner broke.I replaced the radiator,tensioner and pulley and the belt.but if I let it sit there and idle the temp guage goes no...

It sounds like you have an air pocket in the cooling system. I would try parking the car on a hill with the front of the car facing up. When it has fully cooled off, recheck the coolant level and ad more coolant if needed. Sometimes you can slowly top up the system through the bleed hole as well, do this when cold on level ground.

Jan 23, 2011 | 2002 Cadillac Deville

1 Answer

My Cadillac Deville, 2002 northstar is running hot........or the temp gage goes up and I have to stop driving..I have a new thermostat,relay switches for the fans,temp control sensor and a new coolant...

Check the fan to see if it is going on. On my 1997 Cadillac Deville Limousine I had to have the 2 fans, and 3 relays replaced, as well as the wiring contacts for the relays at an auto electric shop for about $700 last fall, but it has been running cool since then.

Dec 31, 2010 | 2002 Cadillac Deville

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