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Replace the blower fan resistor?

Tiny
ANDYVE
  • MEMBER
  • 2003 PONTIAC GRAND AM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 10,200 MILES
How do I replace the blower fan resistor in this vehicle?
Tuesday, August 25th, 2009 AT 4:51 PM

17 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,867 POSTS
1.Disconnect the negative battery cable.
2.Remove the right closeout/panel insulator.
3.Move the Body Control Module (BCM) aside.
4.Disconnect the electrical connections at the blower motor.
5.Remove the blower motor retaining screws.
6.Remove the blower motor and fan assembly.

Fig. Blower motor mounting


https://www.2carpros.com/forum/automotive_pictures/249084_yo_2.jpg



To install:

1.Install the blower motor and fan assembly.
2.Install the retaining screws and tighten the screws to 45 inch lbs.
3.Connect the electrical connections.
4.Install the BCM into position.
5.Install the right closeout/insulator panel.
6.Connect the negative battery cable. Tighten the negative battery cable bolt to 12 ft. lbs.

Let me know if this helps.

Joe
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Tuesday, September 8th, 2009 AT 9:08 PM
Tiny
RCA550
  • MEMBER
  • 1 POST
  • 2001 PONTIAC GRAND AM
2001 Pontiac Grand Am 6 cyl Two Wheel Drive Automatic

A 2001 grand am where are the blower resistor located
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Blower motor resistor is below the right side of dash, pic below


https://www.2carpros.com/forum/automotive_pictures/261618_Graphic_688.jpg

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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
MSTIVERS
  • MEMBER
  • 1 POST
  • 2001 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 128,000 MILES
IS THERE ANY CHANCE THAT THE RESISTOR NOT BEING MELTED ON THE CURCUIT BOARD TO CONTROL THE SPEEDS OF THE BLOWER?
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The blower motor resistor is not on a circuit board see below


https://www.2carpros.com/forum/automotive_pictures/12900_blower_resistor_12.jpg

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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
SOABELL
  • MEMBER
  • 6 POSTS
  • 2000 PONTIAC GRAND AM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
Yes I need my blower motor resistor replaced, and I was wondering the steps to find this to get it replaced. I didn't know if my dash needs to be taken off or if I can get to it from behind the glove box or from the floor board to behind the dash. I know that you follow the wires from the blower motor to the resistor but I don't know how to locate the blower motor.
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Remove the under dash panel on the pass side. After that look underneath and you will see the heater box and the metal round thing about the size of your fist is the blower motor. The resister is right next to it. It is held in by a few 7/32 screws. Hope this helps
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
MOONTFA2504
  • MEMBER
  • 1 POST
  • 2000 PONTIAC GRAND AM
I need help finding the location of the Heater Blower Motor Resistor on a 2000 Pontiac Grand-AM GT. The heater fan only works on the highest setting. I pulled out the glove box, heater control panel, & radio and tried following the wire harness back from the control panel. However the harness splits off with one section going under the rug by the center consol, & the other disappearing back by the firewall. Since I had everything out, I looked under the dash on the passenger side, but I didn't see anywhere where the resistor would fit/go into. I had the same luck under the hood. Maybe I just didn't see where it belonged. I ran out of time so I didn't get a chance to look under the dash on the driverside. The resistor I got from my auto-parts store is made by Standard (part# RU43). The resistor is a Printed Circut Board Card that is mated to a 5 pin male plug with two attaching ears (for screws/bolts). It's obvious the resistor slides into a port of some sort. I noticed that the resistor has an attached foam gasket which is leading me to think it most likely belongs under the hood somewhere.

Thanks in advance for any info you can give me in replacing the resistor, and I hope you folks have a great holiday season. I did send in a donation for the help & again thanks.
Dave
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

Over time the blower motor resistor will get burnt on the different speed setting and can only work in one speed.

The blower motor resistor is located under the dash on the passenger side. It is mounted tot he blower motor.
To take off the sensor simply disconnect the wiring and remove 2 screws that holds it in place.

I have attached the diagrams for your reference.

Please let me know of any questions.
Thank you.

https://www.youtube.com/c/2carpros/featured
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
BOB2224
  • MEMBER
  • 1 POST
  • 1999 PONTIAC GRAND AM
Heater problem
1999 Pontiac Grand Am 6 cyl Two Wheel Drive Automatic

How do I change the blower motor resistor and where is it located at?
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Blower motor resistor is located on the blower motor case itself. Blower motor is located under dash, remove right lower interior panel for access.

REMOVAL/INSTALLATION:
Disconnect negative battery cable.
Disconnect resistor wiring harness.
Remove resistor mounting screws, then resistor.
Reverse removal procedure for installation.
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Saturday, November 9th, 2024 AT 4:49 PM (Merged)
Tiny
MIKE1971
  • MEMBER
  • 2 POSTS
  • 1999 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 162,000 MILES
My heater control inside the vehicle only works on the 4 & 5 setting. I get no air at all on settings 1, 2 & 3.
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Saturday, November 9th, 2024 AT 4:50 PM (Merged)
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

It does sounds like a faulty blower motor resistor. Which is a very common issues with these cars. The resistor is mounted on the side of the blower motor. See below for the replacement procedure of the resistor.

You might find this article helpful:

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Let me know of any questions.

Thank you.
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Saturday, November 9th, 2024 AT 4:50 PM (Merged)
Tiny
JGARRETT566
  • MEMBER
  • 1 POST
  • PONTIAC GRAND AM
Hello,
I have a 1999 Pontiac Grand Am, 98000 miles.
I am wondering where the blower motor resistor is on this vehicle because I have to replace it

Thank you.
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Saturday, November 9th, 2024 AT 4:50 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Remove the right lower interior panel in front passenger side, it's screwed to the side of the blower motor.
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Saturday, November 9th, 2024 AT 4:50 PM (Merged)
Tiny
FAIRRACING31
  • MECHANIC
  • 150 POSTS
The blower resistor should be mounted next to the blower motor. The resistor connector and blower connector should be in the same wire lume. I believe the blower resistor has 5 wires to it. DK BLU, PPL, LT BLU, TAN, YEL
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Saturday, November 9th, 2024 AT 4:50 PM (Merged)

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