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Location of cooling fan sending unit 1999 cadillac deville?

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If you are refering to the Engine Coolant Temperature (ECT) sensor,it is located on the right rear of the engine below the exhaust gas recirculation (EGR) valve.

HINT: If your Deville is equipped with the analog instrument cluster and the temperature gauge is working, or if you have the digital instrument cluster and the driver information center (DIC) has been diplaying messages telling you that the engine is hot, the problem with your engine cooling fans is NOT the sensor.

Posted on Jun 03, 2012

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Posted on Jan 02, 2017

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michael wiggins

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SOURCE: Need location of fan relays on cadillac deville 2000

a relay panel is located under hood on passengers side

Posted on May 27, 2009

Anonymous

  • 33 Answers

SOURCE: 1999 Cadillac Deville and the radiator fans are not coming on

you should check the fuse in the fuse boxe under the hood and find the radiator fan fuse
if the fuse is no longer good the little piece of metal will be cut in the middle so replace it with the same number if it's a 20 AMP do not put a 30 or a 15 AMP
if the fuse is good then there might be some problem with wires (could be cut) or the radiator fan motor is no longer good
you should have it check
Good luck

Posted on Jun 19, 2009

Anonymous

  • 137 Answers

SOURCE: thermostat location on a 1999 cadillac deville concours

looked it up online and looks like it's on the front of the water pump in a thing called the coolant inlet housing. one end of it looks something like the letter y and the other end, where the thermostat is round. hope that helps

Posted on May 30, 2009

Anonymous

  • 362 Answers

SOURCE: Cooling fan relay on a 1992 Cadillac Deville

Left Hand Side Of Engine Compartment On Relay Bracket

Posted on Jan 25, 2009

duane_wong

Duane Wong

  • 6826 Answers

SOURCE: cadillac sedan deville fuse box location

lower left side on driver's side near the hood release.

Posted on Jul 02, 2010

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1999 CAD DEVILL COOLING FANS NOT WORKING WHERE ARE THE RELAYS LOCATED?


Engine Cooling Fan Relay 1
In the center front of the engine compartment, on the lower radiator support, near the cooling fans
Engine Cooling Fan Relay 2
In the center front of the engine compartment, on the lower radiator support, near the cooling fans
Engine Cooling Fan Relay 3
In the center front of the engine compartment, on the lower radiator support, near the cooling fans

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1 Answer

99 cadillac deville runnin hot


Look for the silly stuff. Check for things blocking off the radiator, coolant level, water pump belt, etc. If none of those help, check the cooling fan, coolant temperature sensor, fan relay and fan fuses. If everything there is working, consider a stuck thermostat, an obstruction in the cooling system itself or a failed water pump. Kind of a long shot but engine timing can also make it run hot. Hope this helps.

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I would recommend checking all of the fuses first. The next step is to see if the fan/fans are functional by connecting a hot wire to the fan motor directly. Try turning on the AC and seeing if the fans kick on then. The most common issue is the radiator temperature sending unit has failed. The only solution for this issue is to replace the sending unit. It is normally located in the bottom of the radiator. This one tells the fans to turn on and off. There is another temperature sending unit that is located in the block and it is for measuring the engines operating temperature.

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Where are the cooling fan relays for a 1998 Cadillac Deville Northstar located?


Are you sure that you don't mean the cooling fan control module? It should be located up front next to the cooling fan. It is square shaped and has a long square shaped plug going into it. 00114_cooling_fan_control.jpgReads the temperature of the coolant and passes the information to the engine control computer (ECC). The ECC receives analog information and signals the cooling fan switch to cycle the cooling fan on or off, as required.








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Digital fuel guage


yes. the fuel sending unit in the gas tank does need to be replaced

Jan 28, 2009 | 1999 Cadillac DeVille

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Cooling fan relay on a 1992 Cadillac Deville


Left Hand Side Of Engine Compartment On Relay Bracket

Jan 25, 2009 | 1992 Cadillac DeVille

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