Question about 1999 Cadillac DeVille

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What fuse controls the 1999 Cadillac DeVille's heater fan? My heater fan doesn't work.

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The fan assembly is under the glove compartment. Remove cover[3 scews] unplug electrical connector. then remove the 3 bolts that hold the fan assembly in the housing. take motor apart and clean check brushes in brush holder, then sand the armature where the brushes ride. Stretch spring on brushes , the put the motor back together. works 95% of the time.

Posted on Oct 15, 2010

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Posted on Jan 02, 2017

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SOURCE: 1999 cadillac deville air wont work

There's a blower motor (fan) under the hood and up against the firewall near the center of the car that takes some work to remove. It has gone out in the last 2 of my 4 Cadillacs. Turns out if you're not real careful with the positioning of the spark plug wires they will brush up against it, and if one of them gets cracked or brittle it will "arc" and short out the blower motor. The a/c compressor should still come on (you'll hear a click when it engages) but you won't get any air blowing into the cabin, hot or cold.

The part was like $200 stock (year 2000 prices) and it took about an hour to remove it. My Caddy at that time had this damn strut bar going across the engine bay which we eventually removed to get to the blower motor.

Posted on Apr 09, 2009

  • 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

  • 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

  • 37 Answers

SOURCE: 1999 cadillac turn signals stopped working

Check the hazard switch brother. Thats a know source for this problem. Mess around a bit with it for a temporary fix but replace it at any rate!

Posted on Aug 16, 2009

emissionwiz
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SOURCE: 1999 Cadillac Deville Heater Blower motor has

make a jumper cable up from lamp cord (from any Hardware store) and power up the blower motor from the battery

Posted on Jan 18, 2010

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1 Answer

Where is the hi and low beam light fuses in a 1999 Cadillac deville sedan


See page 6-63 of the The 1999 Cadillac DeVille Owner's Manual linked below for the location of the fuse panel, and which fuses control the hi and low beam.VQ

The 1999 Cadillac DeVille Owner's Manual
http://www.gm.ca/media/owners/manuals/1999_Cadillac_Deville_Manual_en_CA.pdf

Jun 12, 2016 | Cadillac Cars & Trucks

1 Answer

My heat doesn't work on my 1999 Cadillac Deville


Start with the basics, check to make sure you have thermostat, h And the heater hoses. On a lot of the older cars. This would help prevent the older car from over heating. Just a suggestion.

Sep 22, 2013 | Cars & Trucks

1 Answer

Fans for ac and heater not working. Checked all fuses ok Could it be a relay switch


Lifted from another FixYa page...............

Follow this step for clear the a/c codes on your cadillac el dorado 1999.
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Jan 12, 2011 | 1999 Cadillac DeVille

1 Answer

My 1999 DeVille Concours A/C and heater fans don't come on.


open hood,look in main fuse box for blown fuses,or bad relays to heater fans. the a/c fan should come on only when you turn a/c on at the dash panel only. it has nothing to do with the heat. if the heater blower fans don't come on, then look in the main box[fuse] for a blown fuse also. otherwise the problem is in the heater control module.[where you turn on a/c and the heat] that panel has a different fuse location.under the dash drivers side or on panel on drivers door at the door jam[where the door shuts towards the front of car,under mirror,but inside] look for fuse panel there also for blown fuse. hope this helps,but if not,recommend you seek a pro.such as cadillac

Dec 28, 2010 | 1999 Cadillac DeVille

3 Answers

1999 Cadillac Deville Heater Blower motor has quit. How do I determine whether it is the blower motor or the controller?


make a jumper cable up from lamp cord (from any Hardware store) and power up the blower motor from the battery

Jan 18, 2010 | 1999 Cadillac DeVille

2 Answers

Air not coming out of vents


Your heater controller or fan motor blower isn't functioning.

Jun 15, 2009 | 1999 Cadillac DeVille

1 Answer

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

Jun 14, 2009 | 1999 Cadillac DeVille

1 Answer

Heater fan doesn,t work


if you are getting power at the fan plug, it is possible that the recycled motor is bad.

Feb 04, 2009 | 1994 Cadillac DeVille

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