Question about 2004 GMC Canyon

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Blower motor on a 2004 canyon

How do you change the heater blower motor on a 2004 canyon truck and where is it.

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It shoulod be on the firewall under the hood on the passenger side its hel in by three screws and a plug. when you pull the old one out put the new one in exactly the same way you took out the old one and you shoudln be up and running again

Posted on Feb 20, 2009

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The heater motor should be located on the passenger side either under the dash by passenger's feet or under the hood on the firewall(wall closest to the windshield) there should be a wire or small wire harness going to it .
looks like half cylinder bolted to firewall

Posted on Feb 20, 2009

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1 Answer

2004 canyon no voltage at heater resistor


The resistor provides the ground circuit for the blower motor. So you would need to have power at the blower motor first. Grounding the motor or resistor should make the motor run.
The blower motor gets power from a 30amp fuse which gets power from a relay.

Jan 18, 2014 | 2005 GMC Canyon

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This is caused by a defective blower motor speed control resistor, the resisitor is located next to the blower motor.

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Bad blower motor resistor normally located near the blower motor under the dash on the passenger side. Sometimes they are on the firewall under the hood on the passenger side.

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1 Answer

Fan motor doesn't work on 1-3 but works on 4 for the A/C and Heater. Is it a fuse or switch problem?


It's your blower motor resister. It is located on or near the blower motor. This, when it goes bad, will cause your fan to only work on high.

Sep 03, 2010 | 2005 GMC Canyon

1 Answer

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I dont think that the blower has a fuse just a relay. try replacing it and see if that helps.

Dec 12, 2009 | 2004 GMC Canyon

1 Answer

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Check owners manual for location of heater blower motor front,check with a test light,if it's good locate blower motor under glove box and test the two wires for power when switch is turned on,if power is present motor needs changed.if no power check blower motor resister.

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1 Answer

My 2005 GMC Canyons blower motor works only when the switch is placed on the highest position. Is it the switch, or the blower motor, or is there something that I am not thinking of?


I believe your problem is a burned out dropping resistor. I don't know if you will find it under the hood near the heater, or behind the switch, but where ever it is this is most likely your trouble. It will be sometwhere in the line between the switch and the motor feed wire. I hope this helps you fix it.

Nov 07, 2009 | 2005 GMC Canyon

1 Answer

Heat/ac blower motor works on high. intermittent on other speeds.


Check the blower resistor pack - usually located in the heater air ducting in the blower fan airflow. Check for loose connections and open circuit resistors on the unit.
If speed 4 works always, its unlikely to be the blower motor ground connection.

Aug 10, 2009 | 2004 GMC Canyon

2 Answers

Same issue with blower fan


Replaced connector and everything is perfect. Several canyons have had this same issue . looked through several forums. Thanks Guys

Jun 20, 2009 | 2004 GMC Canyon

2 Answers

Fan blower motor


The Canyon has an inherint problem with the Fan Power cable being loose. When I say loose...I'm saying that you need to adjust the wires and then take a zip strip to tighten it up.

Passenger side under the dask are 2 cable hook ups. the one on the farthest right (Only 2 wires going to the plug) is the fan power cable. Jiggle it while the fan is on position number3 so you can hear when it comes on!!!

Nov 18, 2008 | 2004 GMC Canyon

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