Two different resistors are available for this application. Please verify if your vehicle has a 2 or 4 hole mount before purchasing.
Vehicle Heating & A/C Option
with 2 Hole Mounting Flange
Left Hand Drive:
All of our auto parts are intended for Left Hand Drive USDM vehicles. If your vehicle is Right Hand Drive, please ensure the part is correct for your specific vehicle.
Item Condition:New
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
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How to Replace Blower Motor Resistor 2003-06 GMC Sierra 2500 HD
Created on:
Tools used
Socket Extensions
7mm Socket
Ratchet
7/32 Inch Socket
1. access the resistor
Remove the four bolts under the glove compartment.
Use your 7mm socket and driver
2. remove the resistor
Unplug the resistor from the harness.
Remove the four bolts securing the cover next to the resistor and unplug the remaining harness.
Unbolt the now unplugged resistor and remove it.
3. Install new resistor
Use your wrench to bolt it back in.
Plug everything back in, unbolting the cover obstructing the second harness again if necessary.
Test and replace the panel.
Brought to you by 1AAuto.com-- your source for quality replacement parts and the best service on the internet.
Hi, I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my 20+ years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1AAuto.com. The right parts installed correctly- that's going to save you time and money. Thank you and enjoy the video.
In this video we're going to replace the blower motor resister on this 2002 GMC Sierra. This procedure is the same for pretty much any GMC or Chevy truck and SUV with this body style with the manual air conditioning controls. You'll need two sockets, a 7 mm and a 7/32 standard size socket and a ratchet and an extension.
A common problem with these trucks is, you can see with my system is on, I only get fan on the four and five positions. On the passenger side, there are four, 7mm bolts to remove, one there, one in there, there's one up in that hole right there, can't really video it and then over here closer to the gas pedal. There's one right there and once you remove those bolts, just reach in and kind of pull it down and out of the way. Just put your thumb in there and disconnect your harness. All the harness is, is a little tab right here that you need to pull back. This tab right here. That's up in there, pull that back and then down.
Now you're going to remove four bolts. You're going to remove two here that hold the resistor in, then you're going to remove two that hold this fan cover here. There's one here and then there's one opposite of that; that I really can't film. Once you have this cover loose, what you're going to fight to do is get a finger in there to press on the tab. This is what locks in there. Basically you have to reach in there and press right on this to unlock it and then pull it out, so that's what I'm trying to do there.
Maybe if you have smaller fingers you won't need to loosen this up, but I did, so I'm actually going to bolt this back up. We can take this out now. Here is my old resistor out. Here's the new resistor from 1A Auto. You can see it's pretty much the same. It's all going in there the same, the resistor itself, is a little different from the circuit board, but it will go right up in there. I have this snug. I'm going to put this up in there and pretty much by feel, reconnect it. It's not too difficult. Now I'll reconnect my harness. Just a quick note here, I did have to turn that connector around. Just the resistor from 1A Auto was just turned 180 degrees, so you just flip it around and it just plugged right in. Turn the key on and you can hear it already working on three, you can hear it working on two and one. Now I have all five speeds. Now we'll just put this bolt up in here. Just put in the most difficult part of the operation. Tighten that up.
The final part is put your cover back in place. You want to push it up in there, you push it up next to the firewall first and I'm sorry for shaking around a little bit here. I'm just trying to film with one hand and trying to push it up with another. Push it up and in first and then make sure you have everything lined up. As you can see here those are the passenger side outlet holes. Make sure those are all wound up, then start your end bolt here and then I recommend starting the one next to the driver side. Once you have those lined up, the other two middle ones go in pretty easily.
We hope this helps you out. Brought to you by www.1AAuto.com-- your source for quality replacement parts and the best service on the internet. Please feel free to call us toll free, 888-844-3393, where the company is here for you, on the internet and in person.
HCA41498
In Stock
Product Reviews
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4.79/ 5.063
63 reviews
5 Stars
4 Stars
3 Stars
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1 Star
54
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exact fit
john
January 23, 2017
I received resistor in timely fashion as with all my orders from 1A auto and with 20 minutes removed and replace resistor. I was glad to have heat in the cab of my Silverado again.
Thank You 1A auto
didnt fix problem
Guy
February 1, 2017
works on 1 3 4 not on 2 and 5 it did at first and then right back to original problem
Blower motor resistor
MICHAEL
February 25, 2017
Thanks for video on how to replace. Quick shipment.
Perfect fit
CHARLES
February 28, 2017
Worked great got the part fast for a great price. Good installation video.
Blower Motor
John
April 25, 2017
This was and easy install. It works great.
Thankyou 1A Auto again for a great product and response.
Very happy
Jesse
June 22, 2017
Easy installation. The reason why I chose this company is because the prices are very affordable compared to the competition and because of all of their instructional videos on YouTube as been extremely helpful for me to diagnose an issue and repair.
Easy to install
Charlie
June 27, 2017
This is the third resister. Fan now works perfectly. GM seems to have bad circuit design which cooks this resistor.
Right Part If You Pay Attention
Ernest
July 2, 2017
I ordered the below part without thinking. After it arrived I realized that I required the 1AHBR00010 vice the 1AHBR00009. I received the right part and the blower motor problem was fixed
Rod
July 10, 2017
Fit perfectly, low price. I'm ordering all my parts from 1A Auto from now on. Thank You!!
jeff
July 17, 2017
Yes worked great cost was responsible and very fast shipping would definitely recommend this company for all your parts
part
Gary
July 21, 2017
I would recommend this product to everyone. Easy install, great fix, worked just fine Thank You
Donald
July 28, 2017
Went in just like it was in the video and works like the old one did.
perfect fit
Guillermo
August 1, 2017
It is a perfect fit and works very good I recommend it
Larry
August 6, 2017
It is nice to have the #1 blower speed back after many years of not having it.
very happy with out come
Ronald
August 30, 2017
the how too was easy and simple,the part fit perfectly and works the way it should.
All fan speeds work again
B
September 4, 2017
All fan speeds work again. I should have just done this fix months ago when a few of the speeds went out. Cheap part and very easy to install. All set for winter now.
Couldnt have asked for better
Sam
October 5, 2017
The part was easy to find, at the right price and easy to install. Video was a tremendous help. I will order from 1aauto again and recommend to friends.
2000 Chevy Silverado blower motor is back in business
Gary
October 24, 2017
Thanks 1A Auto. Your how too video and blower motor resistor fixed the problem.
2004 Chevy sub
Lawrence
November 16, 2017
Blower motor control installed easy and now all 5 fan speeds work. Thanks 1AAUTO
Simple Fix
Dave the DIY Guy
December 1, 2017
Found it on the site quickly, ordered it quicker, came fast, installed easily. Problem solved!
Tahoe fan resistor
G
December 2, 2017
A1 auto video and part made for an effortless repair of fan stick with only one speed. Now good as new
Perfect
A
January 13, 2018
Hvac fan only worked on high. Swapped this part and now everythings back to normal. Thanks
Wrong part, excellent SERVICE!
Fred
February 21, 2018
Part arrived timely but did not fit my Suburban as advertised. I called customer service and was taken good care of in a timely and very agreeable manner. Correct part arrived quickly and refund was also handled with dispatch.
Blower motor
Brian
March 13, 2018
Part was great plug and play did not fit exactly in opening had to modify it
RALPH
April 12, 2018
A-1 Auto offers two great services..First, their YouTube videos are excellent and show you exactly how to make the repair, and second, offer quality parts at a fair price to finish the job...What else do you need????...just watch...then order...thanks A-1
Fixed the problem @
Arnie
April 14, 2018
Thos part was easily removed and replaced for 2003 Silverado. Fan motor now works on all speeds.
Blower motor resistor
S
April 27, 2018
Appears to be an excellent product. It varied from the OEM, but no issues with installation, Very easy to install(. how-to videos were excellent
How'd you do that?
Joseph
May 3, 2018
Judging from when it arrived, 1a must've shipped it before I even knew I was going to order it. How the h### did they do that??????
perfect fit
eddy
May 4, 2018
I bought this part and a blower motor actuator. I was not sure of the parts to order so I contacted the store and Cameron assured me that these were the correct parts for my vehicle. These parts at the dealer (OEM) wee over $400.00 combined. Thanks Cameron for your EXCELLENT help with my order. I'll be a repeat customer.
Works
A
May 15, 2018
Does what intended. Perfect fit. Fixed the issue with the fan in my Avalanche.
Blower resistor
Matthew
June 19, 2018
This was exactly what I needed and was fast shipping. I would definitely recommend this to others who have same problem
Great
Francisco
July 6, 2018
Easy to install, great product overall. Very satisfied.
WOW!! Customer Service
Ronnie
July 23, 2018
Service was quick and responsive to my question. Was very committed to resolve my question and other options. Very pleased.
Easy economical fix
T
August 5, 2018
I appreciate the helpful videos. My low fan speed went out on my 2000 Silverado. This part restored all functions.
Great product
T
August 20, 2018
Product arrived on time and installed the very next day. Worked great no complaints. Would highly recommend 1A Auto. Thank you for the do it yourself videos.
Resistor works perfect!!
G
October 8, 2018
the resistor does exactly what its supposed to do,also was delivered days before the estimated date given. feedback from me is +++++++++++++++++++100% or A+
Part did not fit, but they made good on their guarantee
G
October 11, 2018
I ordered a blower motor resistor, which arrived quickly and in new condition. However, the part did not fit. The part was for a 2-hole model not a 4-hole. But, 1A Auto refunded my money and I did not have to send the part back.
Blowing again
M
October 18, 2018
Thanks it was on time and the right part.I will use it again
Blower Motor 2002 silverado
S
October 22, 2018
Everything went swimmingly well. Heater is OK now.
Hester Sensor 2017 1/2 ton Classic Chevy p/u
William
November 1, 2018
Part does not fit bolt pattern from old part.............................
Ah heat
Greg
November 5, 2018
Didn't have any speed other than 4 5 did some searching found out it was the resistor so as I do logged into 1a auto found it looked at the video ordered the part couple days later installed it and now I have all speeds on the blower love it
A1 IS OK
M
November 26, 2018
THIS IS NOT THE FIRST TIME I HHAVE ORERED PARTS FROM A1, THEY WANT TO HELP YOU DO THE JOB RIGHT,ON LINE VIDEOS ARE A BIG HELP, THANKS A1
Great Product
J
December 18, 2018
The resistor ordered was just the ticket.
It fit exactly as specified.
I highly recommend this site.
Frank
January 10, 2019
Very impressed with 1AAuto. I misunderstood what part I was ordering and naturally ordered the wrong part. I called and the right part was shipped immediately. I didn't have to return wrong part and was even given credit for the wrong part. The service was quick , courteous and I am now sold on 1AAuto. Thanks
Oem quality
Christopher
April 21, 2019
Direct replacement
Clayton
July 1, 2020
I was shipped the correct resistor, it arrived on time, and it worked properly.
1Aauto A+ Post office F
John
August 8, 2020
Had to wait awhile for this blower motor resistor , not by fault of 1Aauto, but the part is installed and performing well now. The pony Express, formerly known as USPS lost the first order but managed to finally get the second order delivered.
Direct replacement
gary
November 13, 2020
1aauto my 1st call part was direct fit plug and play I fixed both Tahoe and Silverado less than 1 hour at the reasonable cost of parts shop price 400.00 I was quoted thanks again only down side us mail took 8 days to deliver fed ex ups the only way to ship
James
August 24, 2021
works great solved the problem...
Great value
Kenneth
October 18, 2021
Good value been reliable, factory part went out around 10 years. Bought short life parts from checker auto. Between 10-15 years. Now it's been 3-5 years with no issues
Blower Motor Resistor
David
December 19, 2021
Worked like a glove!
Worked perfectly
Martin
February 6, 2022
Perfect fit
Ralph
February 17, 2022
Great part, works perfect
Window motor replacement .
BILL
September 5, 2022
Fit perfectly and the video was very helpful .
Mismatched part
Richard
January 14, 2023
This part was purchased for my 2003 Chevrolet Tahoe. I was careful to make sure I purchased the one with two mounting screw fittings. The part didn't fit correctly, however, it did work. It functions as it should.
Erik
January 23, 2023
work great!
Mark
May 6, 2023
Works great thank you
Blower Motor Resistor was the perfect choice.
Joseph
May 29, 2023
Purchased this Blowier Motor Resistor with a Heater Blower Mother for my 2006 Silverado. They were a perfect match for my heater system.
Good inexpensive fix
Jerry
June 8, 2023
Easy swap with plug and play and matched up with my 2002 Chevy Silverado 1500. Corrected the problem with each fan speed now working. High position not as strong as I thought it should be but overall a quality fix at reasonable price. Fast processing and shipping
Pen
August 23, 2023
Works great
Jimmy
September 11, 2023
Works good,didn't directly bolt up how I wanted,I made it work.
Order again from here
Tony
December 14, 2023
Shipped right away had it in 2 days. Fits, works, excellent part now we are warm
Fan works
Harry
October 27, 2024
Everything worked the way it was supposed to. Now I have heat.
Customer Q&A
My AC is not blowing on the High speed, It will fluctuate on speeds based off the RPM of the engine is going, for example, when I stop at a light, the AC fan speed will sputter. The AC is not working reliably, at times It will not turn on at all. IsMay 1, 2017
D R
10
It is a very likely solution. Inexpensive, easy to install (5 minutes) and will save the hassle of dropping your car off at a shop to have someone tell you it is what you need at twice the price. If not, it eliminates the most likely cause of fan problems at a small price.
May 1, 2017
John W
10
The resistor pack only controls the operation of the blower motor not the operation of the AC unit. If the blower motor works at all speeds when the AC is turned off then the problem is not with the resistor pack. Not sure what you mean when you say the AC does not turn on. Do you mean the indicator light for the AC unit does not come on when you actuate the AC switch or do you mean that the blower motor does not come on. Again if the blower motor does not come on or works intermittently at the different speed settings then the resistor pack is bad.
July 2, 2017
Ernest S
10
That's basically what mine was doing. 1,2,3, fan speeds were not there. Only 4 and 5. Driving on highway upped them slightly. Putting this new part in was easy and did the trick. Now, all speeds work as they should.
October 11, 2018
G E
What should the resistance, or on reading be?June 25, 2017
D_windex D
10
The resistance should be the same as factory. Unfortunately we do not have the specs available.
June 26, 2017
Tim K
10
Just as good as stick
December 22, 2020
J A
My blower motor plug in has melted where it plugs into the blower motor, this is the 2nd harness to melt, would the resistor be putting to many amps into the blower motor and melting the harness to where it won't work?December 5, 2017
Roger P
10
There is a history with this blower / resistor / harness. My guess is replacement resistors are not the best quality (lowest China bidder), the blower is oversized for the resistor and the cable or connector is of insufficient current rating. A poor quality resistor will allow too much current to flow causing the connector and harness to melt. I think you will find that people are replacing the harness with a heavier gauge wire. And I would buy a quality, read more expensive, resistor pack like an oem one. BMW aren't much better. I've been through two in my x5 in 3 years and one in my 2000 gmc. Good luck!
December 5, 2017
Peter G
10
Possibly if resistor was wrong, but more than likely your blower motor is dragging for some reason creating a higher amp draw than designed for resulting in overheated plug, good luck
December 5, 2017
David A
10
I have heard of this because there is more strain on the resister when you run the fan on speed 1 for long periods of time. Ive been told to run the fan on high speed only and shut off when temperature is satisfactory
December 5, 2017
Chad M
10
Blower module
September 10, 2018
T E
My blower motor resistor pin connection is angled to the corner of resister. Hence my mounting flange opening is angled to the corner as well, will this part 1AHBR00009 with mounting flange fit my 2 bolt on a 2004 chevy silverado V6 4.3L?January 24, 2021
Pedro J
10
This item is listed to fit the 2004 Chevrolet Silverado 1500 with 2 Hole Mounting Flange with Manual Temperature Control.
January 26, 2021
Jessica D
I have put 4 new ones in a period of two years mostly the two high speed 4-5 doesnt work and two times 1-2-3 doesnt work,but when I put it in works great for about two or three weeks?April 2, 2023
Freddy C
Does this work with a 2005 suburban 1500 manual temp ?November 30, 2023
Charles L
10
As long as yours has the 2-hole mounting flange design then yes, this will be a fit!
December 6, 2023
T I
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