Question about 2004 Cadillac Seville SLS

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Blower Motor not working

Blower motor has been replaced. Worked for a week. If you hit the dash it works sometimes. What else could be wrong.

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  • Cadillac Master
  • 42,636 Answers

If hitting the dash makes it work then look for a loose earth wire in the system.

Posted on Jan 02, 2014


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Posted on Jan 02, 2017

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SOURCE: blower motor

The blower motor is on the passenger side of the front seats, pull the carpet back and you will see it there. Make sure it's not the little computer sitting right next to the blower instead of the blower. When you turn the temp down to 65 does the little orange colored AC button light up? If not, it's the climate control computer which is sitting next to the blower.

Posted on Sep 25, 2008

  • 5 Answers

SOURCE: blower motor has no power 1994 cadillac deville

If there is only high speed fan, then replace the resistor assembly in the heater plenum. If there is no fan at all, then check the ground to the blower- the wire fails down in the fender well. Just run a new ground from a convenient spot to the motor's plug harness. Or it could just be a bad blower motor.

Posted on May 29, 2009

  • 10865 Answers

SOURCE: is blower motor resistor easy to replace?

yes and yes. Just drive to any autozone and buy the part. They will assist you in installing it, often just do it for you as a free service. it just plugs in under the dash.

Posted on Oct 13, 2009

  • 1190 Answers

SOURCE: my 93 cadillac seville blower

Hello, The power module controls the blower motor. It is located on top of the heater case under the hood towaeds the passenger side. When replacing the power module make sure the seperate ground wire is tight and that it is a good ground.

Posted on Sep 27, 2010

  • 46 Answers

SOURCE: blower motor works when it

blower motor requires replacing. Hit a flat spot in motor, then hit bump, it works.

Posted on Nov 29, 2010

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There is a sensor on the side of your blower motor. When mine started acting up I took it to a garage and they told me i need a new blower motor and a new dash board panel. I took it to my "in training" gear head buddy and he replaced the sensor and everything worked fine.

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The area where you "hit" to make the unit go is your neighborhood for investigation.

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Blower motor worked sporadically, then not at all

The fan motor will need to be replaced. You can access it at the firewall. There will be 3 screws holding it on. The brushes inside the motor are shot and will need to be replaced. You can also hit up a junk yard.
If the brushes are shorted out, then the motor will short out causing you to blow fuse.

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Check to see if any of the wire connections are loose.


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Hi Steve, you're so close to the answer already.
The feed wire is broken and sometimes it touches and sometimes not. It might just be the fitting on the end if you're lucky.
I'd replace the whole wire just to be sure ;)

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My heater blower stopped working on my 2002 Malibu. For awhile it worked only on a couple of speeds, then stopped working entirely. I replaced the blower resistor and this fixed the problem for about a...


The blower motor, as you have probably seen, is under the dash on the passengers side. While in Park with the parking brake applied:

Turn the Key On with fan blower set to High. Locate the blower motor and wiggle the electrical connector. If this brings the blower motor to life, a new blower motor is needed. This, if applicable, is a common failure that matches your symptoms. The new blower is simple to replace, although it is never fun working under the dash.

If you have a 12 volt test light or DVOM (multimeter) you can check for power at the electrical connector. You should have battery voltage (12+) with the blower set on high. Always use a known good ground when testing for power. If you have power (key on, set to high) and no blower operation the blower motor needs replacing.

The resistor you replaced is a very common failure on these.

Give me an update.

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