Question about 2005 GMC Sierra

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2005 gmc when the heat is on the blower works but no heat at bottom

How do i remove the heater door motor

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You must remove the dash from the tuck. You will absolutely need the factory service manual to get this done. You can download them for a small fee here

Posted on Oct 26, 2012

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Posted on Jan 02, 2017

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justuscc
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SOURCE: 2001 GMC Jimmy Heater Core Replacement

back by the exhaust up around the case verry hard to get to good luck jimmy rate as fixya

Posted on Sep 25, 2008

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SOURCE: 2003 GMC Sierra heater Blower wont shut off

My 2003 Sierra's blower came on by itself in the garage while I was sleeping and ran the battery completely down. I had to replace the blower switch located under the glove box next to the blower at the bottom of the right corner of the dash. The switch is in front of the blower and held in by two screws. Disconnect the two wire connections. This is a "dealer only" part and cost me 65.00. Also check the wire harness with seven wires connected to it for melted plastic. It will be marked "ABCDEFG". If it has melted, you'll need to replace it. Pay attention when reinstalling either part, that the wires "ABCDEFG" match the switch in that order.

Posted on Jan 17, 2009

  • 1 Answer

SOURCE: 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!!!

Posted on Mar 11, 2009

ministock48
  • 258 Answers

SOURCE: 1996 GMC blower motor only works on high speed.

more than likely yes the resistor

Posted on Oct 22, 2009

  • 172 Answers

SOURCE: 2005 GMC Sierra 1500 - heater blows, but only cold air

Check coolant level. Check for heat at the heater hose going from water pump to heater core at firewall. Check to see that cable is moving coolant control valve from the closed to open position. Low mileage so it shouldn't be plugged heater core.

Posted on Jan 07, 2010

Testimonial: "You were absolutely correct. Low coolant level. Put in some 50/50 and we're nice and toasty now, but need to find out why coolant was so low. Thanks."

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Then you either have a blown blower motor relay or the blower motor itself is toast.

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Common problem.

If you have automatic climate controls, replace the blower control module mounted on the blower itself under the glovebox.

If you have manual climate controls, replace the blower motor resistor assembly, same location.

Remove the plastic skid guard under the glovebox to access the bottom of the blower motor. Remove the 2 tiny screws that attach the part. Then open and empty your glove box. Stick your finger in the access hole on the left side of the door, press the spring and the door will flip upside down. There you will have access to the wiring connectors for either part. Remove this, and the part should drop down. Very easy procedure.

May 31, 2011 | 2005 GMC Envoy Xl

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My heat in my 1992 gmc jimmy barely comes out and barely any heat. My car barely heats up in the winter as it is. And i have checked the water levels and everything. So i was wondering could the problem...


Check the actuator motor on the heater and make sure the heater doors are fully opening and closing to direct the heat or ac. It is inside on the heater box in the end close to the driver side.

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Wher is the blower resistor pack on a 2005 gmc pickup


Underneath the dash near the passengers feet, right next to the blower motor. It is held by two screws or is clipped in with plastic clips. Probably screws though and has a wire harness attached to it. Very easy to replace, just might have to lay on your back on the passenger side floor to visually see it and remove the resistor pack.

Oct 15, 2010 | 2005 GMC Sierra

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Heater blower in 1998 gmc sierra 3500 isn't working . replaced the blower motor but still no blower. any other suggestions


did you check the fuses and did the motor come with a new heater resistor or is it separate

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Fan control only works on high in a gmc 2005 canyon


Replace the blower motor resister,it is mounted right next to the blower motor,it has a lug with about 7 wires on it.Just unplug it and remove two screws to remove the resister.This controls the speeds for the blower motor.The blower motor is the cause of the resister failure.Even if the motor seems to sound,and run fine,it is pulling to many amps.

Dec 08, 2009 | 2005 GMC Canyon

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I have a 2005 GMC Yukon XL and my heater only blows out cool air it will not blow hot air. Also the heated seat on the driver side does not work.


Your heater problem is more than likely a bad temp door motor.The seat heater problem is probably one of your elements.Either back or bottom.If your switch light is coming on then the element is bad.

Nov 18, 2009 | 2005 GMC Yukon

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2005 GMC Envoy. Blower will not work all fuses have been checked.No heat or A/C, ANY THOUGHTS


If this a manual HVAC system, the blower motor resistor pack is defective or the blower motor itself is bad.
If this is the Automatic digital HVAC, the blower motor control module is defective or the blower motor itself is bad.

Sep 25, 2009 | 2005 GMC Envoy Xl

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