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Q: Why do cooling fans on a 1999 Cadillac deville work only when the ac is on?
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Where is the cooling fan relay on your 98 cadillac deville?

at the bottom of the fan, between the two fans


Why does both cooling fans run at the same time on a 1987 cadillac deville?

The cooling fans will run when there is a signal calling for them to come on. High temps will do that. Also anytime the ac is on, a fan will run. Try turning the ac off and see if one of the fans stop. Do this when the engine is cold. If the fans run anyway, check your fan relays, they may be stuck on.


Radiator fan relay location 1999 cadillac deville?

there are 3 relays down at the bottom between the 2 fans you will have to remove the plastic splash panel from under radiator support to get to them


Where is the alternator in a 2000 Cadillac deville?

Front left of engine. Behind radiator and fans, halfway down


What is the correct temperature for a 1998 Cadillac DeVille?

I know ur fans kick-in @ 222 degress. Hope that helps


Cadillac Seville when does the cooling fans kick on?

my fans on my 95 sls come on at 223 degrees. Larry Venice, Florida.


How do you replace a alternator on a 2002 deville?

you have to remove the radiator and the a/c condenser to pull alternator also cooling fans


Where are the coolant relays located on a 1998 Cadillac Deville?

the fan relays are located below the fans at the center of the radiator at the bottom


How do you replace the alternator on a 2004 Cadillac deville?

you have to remove the radiator and fans and all the covers and then the alternator will be a piece of cake to pull out and replace


Why is your 1996 cadillac sedan deville keeps running hot when you sit in traffic or if you drive for a long period of time then stop what could it be?

check radiator cooling fans not working. Will turn on automatically when the proper temp is reached. Fans should go on IMMEDIATELY when the A/C is used. Set temp to 65 to test


How can you determine why the radiator fans on your 1987 Cadillac Coupe DeVille do not operate?

the sensor that turns them on could be bad or the fan motors them self could be bad


Does a 1999 Dodge Intrepid 2.7 have motor cooling system or not?

Motor cooling system? The engine cooling system consits of the water pump, radiator, hoses, cooling fans, etc.Motor cooling system? The engine cooling system consits of the water pump, radiator, hoses, cooling fans, etc.