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How to Replace Heater Blower Motor 2001-02 GMC Sierra 2500 HD
Created on:
Tools used
Socket Extensions
7mm Socket
Ratchet
7/32 Inch Socket
1. Remove Fan
Remove the four 7mm bolts securing the cover under the dash
Remove the 7/32 bolts securing the blower motor
Unplug the resistor
Remove the three screws holding it in using your T25 torx bit or a 5/16 socket or a flat blade screwdriver
Pull it back toward the back of the car, down and out
2. Install new fan
Line up the blower motor by pushing upward and outward
Tighten the 7/32 bolts to the blower motor
Insert the cover into place
Tighten the four 7mm bolts to the blower motor
Brought to you by 1A Auto.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 26 plus years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1A Auto.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 show you blower motor replacement on this 02 GMC Sierra. This procedure is exactly the same for any 99-02 Silverado or Sierra as well as 2000-2002 Tahoe, Suburban, Yukon, Yukon XL. It's also similar for the 03 and up trucks; 03 to 10 or 11 trucks that have the twist in style motor. The only tools you need are a 7 millimeter and 7/32 inch sockets with a ratchet and a small extension.
On the passenger side, there are four 7 millimeter bolts to remove: one there, one in there, there's one up in that hole right there. I can't really video it. Then it'll be here closer to the gas pedal. There is one right there. Once you removed those bolts, just reach in and pull it down and out of the way. Up underneath, this was the shield for the fan. There's a bolt here. One, I can't really film directly opposite of it. Feel up in there for it. You got 7/32 bolts. You want to remove them both. You can see I have a little extension on my racket and socket. I really need that.
Okay, just fast-forward here. I'm turning the wrench. Then, eventually, it comes out easy enough so I can put my hand up in there and I try to wrest the way out with my fingers. This is the bolt. This one here. Okay, you can see- you can't see this. Now you could see up in there is your connection, your harness connection. You can usually just stick here; your finger in there, and press the tab and pull that out. It allows your shield to come down.
Looking up in there, at this point, there's actually a tab right here. You need to pull down on that tab. Okay. You reach out there with this hand and this finger. I'm pulling down on the tab, and then I'm twisting the motor. Twist. Comes right down and out.
Apologies for that camera work. I didn't realize until after I shot that I didn't get a very good view of that. Basically, you pull down on that tab that I showed you before and then you twist the motor. It will be counter clockwise to then it'll come down and out.
This truck is a video mule. I'll just put the original back in because it's exactly working fine. You just push it up, work it up in there. A crate gets in the way here. Okay. Push the motor up in. Then spin it. Okay. It looks nice and secure. Now get the wire through your shield, and then connect it. You can do that either way. You can put the shield up in there first. I find this just a little bit easier. Shield. Shield in place. Strap this bolt first. You reach up in here. Feel your other bolt. You do it by feel. Get that and started. I'm going to take them out.
Okay. The final part is to put your cover back in place. You want to push it up in there. You push it; it gets the firewall first. I'm sorry about shaking around a little bit here, just trying to film with one hand and push up in there with the other. Push the front of it up in the end first. Then make sure you have everything lined up. Okay, as you could see here, there's the passenger side out the holes. Make sure those are all lined up. Then start your end bolt here. Then I recommend starting the one over near driver's side. Once you have those lined up, then 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. We're the company that's here for you on the internet and in person.
HMA84763
In Stock
Product Reviews
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4.53/ 5.038
38 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
29
5
1
1
2
Great Price and near perfect fit
Lawrence
June 25, 2017
After I purchased, this came to me within 3 days. I already had my old motor out, so the truck was opened up and waiting for the install. I watched the install video provided here. My truck has a center console, so it wasn't nearly as easy to do as the video. Aligning the new motor took 30 minutes of negotiating angels. Also, the place the wiring harness plugs into is offset about 30 degrees from where it is on the old one. Fortunately there was enough wire length from the vehicle to compensate. Overall, the install was more difficult than I thought it would be, but the quality and price of the motor made it worthwhile. I'd definitely do this project again and purchase from this company.
HVAC front blower motor
A
September 14, 2017
Great product and great video. Started with RockAuto. Their product did not come close to working or fitting even after I provided both the electrical and mechanical fit up spec. I also had to pay for the return shipping. So much for the competition. Again thanks for the great service.
Installation
F
January 21, 2018
Received parts exactly when they were scheduled to arrive. The installation video definitely helped. It took some work to install only because of tight spaces and big hands. Otherwise all went very well. Will definitely purchase my parts here again. Thank you for such great service!
Heater Blower Motor
A
March 27, 2018
Watched the video and put in the new blower motor. Everything went very smooth.
Great results again
Nanette
March 28, 2018
Every thing went great. Part was as advertised price was great. Installation went Great.
2002 suburban blower motor
M
April 2, 2018
Your video saved me $$$$$$ and your parts shipped fast thanks !!!!
Dritt
David
May 14, 2018
Fan fit no hassle and took maybe 20 minutes. graet product and Great service from 1A Auto
blower motor fan
Edward
February 7, 2019
Larger fan than OEM, more fan volume. Fairly quiet .EASY installation - part is made to specs.& I saved 40 bucks compared to
local auto parts price
Motor Really Blows
Robert
February 11, 2019
It fit as promised. It was the best price out there and now I have heat in my truck and better A/C as well. The amount of the air coming out of my vents went up 4-5 times and I haven't felt this much air coming out in several years. Installation was easy. Thanks.
Blower replacement
Michael
February 17, 2019
Got here as promised, the installation was a breeze after watching the video.
One thing though, if you have a handicapped left hand, like I do, you may want to get some help as this is left hand intensive.
Product issue
S
February 22, 2019
Lead time was good
Fitment of product good
Product has an issue, blower makes a high pitched whistle on high. All other speeds ok
Living with it for now ,the hassle of return (remove,package up) and old blower discarded already i,would be without heat
Cold in nj these days
Heater Blower motor with Fan Cage
P
April 28, 2019
I viewed the A-1 Auto video prior to trying to install the blower. All parts were removed with little trouble. I then spent over four hours trying to install the new blower. IT DOES NOT Fit!!! It looks exactly like the unit removed except the electrical connection is in a different position on the base and the new connection is horizontal and not vertical like the old unit. I measured the outside diameter of the old unit and the blower base appears to have a slightly larger diameter. That would account for it not fitting back in the AC/HEATER housing. What do you suggest? I'm going to NAPA and get another Heater Blower and return this one to you, unless you have a suggestion to resolve the problem. No AC in Georgia in the summer is not an option.
Bob
Fits 2002 Silverado 5.3
C
May 9, 2019
Replaced my fan as it was no longer running on settings 4 and 5. Easy replacement following their videos.
So so...
F
July 12, 2019
Easy to replace, but I'm not thrilled with the output it has.
heater fan
don
July 22, 2019
Run nice and quiet
heater blower motor 2002 gmc
Raymond
August 11, 2019
Exact replacement part . when part came damaged twice in shipping .customer service made sure one was sent with extra packing so I received a good part . I can not say enough good things about this company . have bought many parts here and always satisfied .
perfect replacement
T
May 17, 2020
This was just as good as factory blower. Easy install and very quite compared to one that the bearing squeals. My install is a GMC Sierra Denali Quadrasteer 2002. Great service and prompt and fast delivery.
Blower motor
Humberto
June 21, 2020
The motor fit and works really good. But I think its a bit slower than the original.
??
M
August 4, 2020
good quality replacement part easy removal of old, easy install of new. Would recommend this to any do it yourself mechanic.
Great Service!
Dennis
January 13, 2021
I was very impressed with how quickly I received my order. The parts were exactly as ordered and worked excellent! I will definitely use 1A Auto in the future . Dennis
2002 Yukon direct fit
R
March 7, 2021
This was a direct replacement. Watched the video a few times and saved myself some money. The garage quoted me $300 for the job.
Blower 02 Silverado
Richard
September 10, 2021
Fit perfectly
Good value
Kenneth
October 18, 2021
So far so good, the part has been reliable.
Perfect fit
Benjamin
November 19, 2021
Fit my 2002 Silverado 1500 perfectly! No more squealing from the old fan.
David
November 27, 2021
Fit perfect
Works great and better price than retail
Bustin-
May 26, 2022
Installed over a year ago and still works great.
Artis
June 23, 2022
I removed the old fan and slipped the new one right in place and I now have plenty A.C. Blowing. The installation video was spot on.
Richard
October 10, 2022
Works perfectly.
Not an "Exact Fit" as described.
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Delane
November 29, 2022
The vehicle is a 2002 GMC Sierra 2500HD. The fan does work but if like like replacement parts to fit like original this is not the part for you. The electrical connector is turned about 25 degrees towards the firewall making it that much harder to connect in an already tight space. If you want put the insulated cover back on you'll have to modify it. Customer Service tried to justify it not being an exact fit as advertised by claiming that theirs looks the same as other after market fans. Sorry but not fitting correctly is not an exact fit and if others are also wrong maybe correct your product and be better than the others!
Lee
May 22, 2023
Great product. East to install.
Good replacement
Dave
July 5, 2023
The fit was tight but good. The electrical connector was in a slightly different location but worked fine. It's been installed now for ~ a month and I'm picking up a slight high pitched whine that wasn't there when it was installed but it hasn't gotten loud enough to be real concern. I'll monitor it and update this review if needed
Blower Motor great price
Schelesia
July 17, 2023
Ahhhh we have air again. Thank you 1Aauto for helping me find the right part for our heating and AC unit in our Tahoe!
Jim
August 17, 2023
Part arrived on time.
Perfect fit
Would recommend 1A to all my family and friends
1A auto has been my go to parts store for years now. I've never been disappointed.
Let me tell you just how good they really are.
Not to long ago I ordered a set of fuel injectors from them. Was supposed to be delivered on a Monday. After it had not been delivered by Wednesday, I called. They sent another set out that day next day delivery with a return shipping label for the first set if it did finally deliver. Three weeks later here comes the first set. I returned them and have never been so pleased with a customer service team as I have been with 1A.
Love your videos. Keep up the good work.
Jim
Pen
August 23, 2023
Fit perfect
Excellent Blower Motor
Carol
November 10, 2023
Fit up perfectly, replaced resistor and pigtail also because the old motor was pulling too much electricity and burned it out too. It's so nice to have 1, 2,3,4,5 fan adjustments back again. Thank you 1A auto!
If I can do it, so can you!
JONATHAN
February 29, 2024
Watch the video, install the parts! Ba-da-boom, ba-da-bing, your done and you saved a boat load of money! I did?
Mark
April 4, 2024
Works great ??
Joseph
May 8, 2024
Works as it should
Customer Q&A
I have a 2001 2500hd silverado and I'm having an issue with my heat. For about the past 6 months my ac/heat would stop blowing and then start back up. A few days ago it stop completely. All y fuses are good any suggestions as to why it stopped workinJanuary 6, 2017
Brent L
10
I have a 2002 silverado with same problems. Blower motor relay and or blower motor. There's also an air filter you can change while replacing the parts.
July 14, 2017
Chales E
10
my heater was doing the same thing, the heater fan motor was bad . I put on a new fan with motor, and now it works great
December 23, 2017
John--D C
10
Same problem with my 06 ram. Looked up on YouTube and installed blower motor and register in 25 minutes
January 11, 2018
J O
10
I would start with the resistor first. If that doesn't fix it (and the fuses are all good), then replace the blower motor.
November 22, 2019
Thomas P
Customer service
877-844-3393
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GMC is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by GMC or General Motors Company.See all trademarks.
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