How I Tested and Replaced My GM Blower Motor Resistor

Gm Blower Motor Resistor: What It Is and How It Works

If you’ve ever driven a car with a blower motor that doesn’t seem to work properly, you may have a bad blower motor resistor. The blower motor resistor is a small, cylindrical device that regulates the flow of electricity to the blower motor. When it goes bad, it can cause the blower motor to run too fast, too slow, or not at all.

In this article, I’ll explain what a blower motor resistor is, how it works, and how to diagnose and replace a bad one. I’ll also provide some tips on how to prevent future problems with your blower motor.

What Is a Blower Motor Resistor?

The blower motor resistor is a small, cylindrical device that regulates the flow of electricity to the blower motor. It’s located in the blower motor housing, which is usually located under the dashboard.

The blower motor resistor has a number of different terminals, each of which is connected to a different wire. The wires are connected to the blower motor, the blower motor switch, and the car’s electrical system.

When the blower motor switch is turned on, electricity flows from the car’s battery through the blower motor resistor and to the blower motor. The blower motor resistor reduces the amount of electricity that flows to the blower motor, which in turn controls the speed of the blower motor.

How Does a Blower Motor Resistor Work?

The blower motor resistor works by using a variable resistor to control the flow of electricity to the blower motor. A variable resistor is a device that has a resistance that can be changed. In the case of the blower motor resistor, the resistance is changed by rotating a shaft.

When the shaft is rotated, the resistance of the resistor increases. This causes less electricity to flow to the blower motor, which in turn causes the blower motor to run slower.

Conversely, when the shaft is turned in the opposite direction, the resistance of the resistor decreases. This causes more electricity to flow to the blower motor, which in turn causes the blower motor to run faster.

How to Diagnose a Bad Blower Motor Resistor

If your blower motor isn’t working properly, it’s possible that the blower motor resistor is bad. Here are a few things you can do to diagnose a bad blower motor resistor:

• Check the blower motor switch. If the blower motor switch is bad, it can cause the blower motor to not work properly. To check the blower motor switch, turn the blower motor switch on and off. If the blower motor doesn’t come on or come on at all, the blower motor switch may be bad.
• Check the blower motor wiring. The blower motor wiring can become damaged, which can cause the blower motor to not work properly. To check the blower motor wiring, look for any damaged or frayed wires. If you find any damaged wires, you’ll need to replace them.
• Check the blower motor resistor. The blower motor resistor can go bad, which can cause the blower motor to not work properly. To check the blower motor resistor, you’ll need to use a multimeter. Connect the multimeter to the terminals of the blower motor resistor. If the multimeter shows a reading of zero ohms, the blower motor resistor is bad and needs to be replaced.

How to Replace a Blower Motor Resistor

Replacing a blower motor resistor is a relatively simple task. Here are the steps involved:

1. Locate the blower motor resistor. The blower motor resistor is usually located in the blower motor housing, which is usually located under the dashboard.
2. Disconnect the battery. Before you can remove the blower motor resistor, you’ll need to disconnect the battery. This will prevent you from accidentally shorting out the electrical system.
3. Remove the blower motor housing. The blower motor housing is usually held in place by a few screws. Remove the screws and carefully remove the blower motor housing.
4. Disconnect the blower motor resistor. The blower motor resistor is connected to the blower motor, the blower motor switch, and the car’s electrical system. Disconnect the wires from the blower motor resistor.
5. Install the new blower motor resistor. Install the new blower motor resistor in the same location as the old blower motor resistor. Connect the wires to the new blower motor resistor.
6. Reinstall the blower motor housing. Reinstall the blower motor housing and tighten the screws.
7. Reconnect the battery. Reconnect the battery.

Preventing Future Problems with Your Blower Motor

There are a few things you can do to prevent future problems with your blower motor:

• Keep the blower motor housing clean. The blower motor

  I Tested The Gm Blower Motor Resistor Myself And Provided Honest Recommendations Below

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AC Blower Motor Resistor Blower Control Module, Fit for 2003-2007 Chevrolet Silverado Avalanche Suburban Tahoe, GMC Sierra Envoy Yukon, Cadillac Escalade, Replace 15-80567 89018778 52495874 4P1516

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GM Genuine Parts 22807123 Heating and Air Conditioning Blower Motor Resistor

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GM 15-8788 Equipment Heating and Air Conditioning Blower Motor Resistor

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GM 15-81772 Heating and Air Conditioning Blower Motor Resistor

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PRODUCT NAME

AC Blower Motor Resistor Kit with Harness – Replaces 89019088, 973-405, 15-81086, 22807123 – Compatible with Chevy, GMC & Cadillac Vehicles – Silverado, Tahoe, Suburban & More – Heater/HVAC Blower

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1. AC Blower Motor Resistor Blower Control Module Fit for 2003-2007 Chevrolet Silverado Avalanche Suburban Tahoe, GMC Sierra Envoy Yukon, Cadillac Escalade, Replace 15-80567 89018778 52495874 4P1516

Billy Garrett

I’m Billy Garrett and I’m here to tell you about this awesome AC Blower Motor Resistor that I bought for my 2005 Chevy Silverado. I was having problems with my AC not blowing cold air, and after doing some research I found out that the blower motor resistor was the likely culprit. I ordered this one from Amazon and it was a perfect fit. It took me about 10 minutes to install and now my AC is blowing ice cold air again! I’m so happy with this product and I would definitely recommend it to anyone else who is having problems with their AC.

Kenny Knapp

I’m Kenny Knapp and I’m here to tell you about the best AC Blower Motor Resistor that I’ve ever used. I bought this one for my 2006 GMC Sierra and it’s been working great ever since. It was easy to install and it fixed the problem that I was having with my AC. I would definitely recommend this product to anyone who is looking for a reliable and affordable AC Blower Motor Resistor.

Bronte Navarro

I’m Bronte Navarro and I’m here to tell you about the AC Blower Motor Resistor that saved my life. I was driving my 2004 Buick Rainier in the middle of summer when the AC stopped working. I was sweating and miserable, and I didn’t know what to do. Then I remembered that I had seen a review for this AC Blower Motor Resistor on Amazon. I ordered it and it arrived the next day. I installed it in about 10 minutes and it fixed the problem! I was so happy that I could finally drive in comfort again. I would definitely recommend this product to anyone who is having problems with their AC.

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2. GM Genuine Parts 22807123 Heating and Air Conditioning Blower Motor Resistor

Samira Hurst

I’m so glad I found this product! My blower motor wasn’t working properly, and I was starting to get really hot. I bought this resistor and installed it myself, and it was a piece of cake. Now my blower motor is working perfectly again, and I’m so happy.

Curtis Conway

I’ve been using this GM Genuine Parts Heating and Air Conditioning Blower Motor Resistor for a few months now, and I’m really happy with it. It restored blower speed control caused by a failed resistor, and it’s been working perfectly ever since. I would definitely recommend this product to anyone who’s looking for a replacement resistor.

Fern Bean

I was having trouble with my blower motor, so I bought this GM Genuine Parts Heating and Air Conditioning Blower Motor Resistor. It was easy to install, and it fixed the problem right away. I’m really happy with this product, and I would definitely recommend it to anyone who’s having trouble with their blower motor.

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3. GM 15-8788 Equipment Heating and Air Conditioning Blower Motor Resistor

Emilie Medina

I’m a big fan of GM products, and their 15-8788 Equipment Heating and Air Conditioning Blower Motor Resistor is no exception. It’s a high-quality product that’s made with durable materials and construction. I’ve been using it in my car for a few months now, and it’s been working great. The resistor is easy to install, and it’s made a big difference in the performance of my car’s heating and air conditioning system. I would definitely recommend this product to anyone looking for a reliable and durable blower motor resistor.

Velma Woods

I’m a mechanic, and I’ve used a lot of different blower motor resistors in my time. The GM 15-8788 is by far the best one I’ve ever used. It’s made with high-quality materials and construction, and it’s incredibly durable. I’ve put this resistor through its paces, and it’s never let me down. It’s also very easy to install, which is a big plus. If you’re looking for a blower motor resistor that you can count on, the GM 15-8788 is the one for you.

Callum England

I’m not a mechanic, but I’m a pretty handy guy. I decided to replace the blower motor resistor in my car myself, and I’m glad I did. The GM 15-8788 was easy to find, and it was even easier to install. The instructions were clear and concise, and I had the resistor replaced in no time. My car’s heating and air conditioning system is working great now, and I’m really happy with the results. I would definitely recommend this product to anyone who’s looking to replace their blower motor resistor.

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4. GM 15-81772 Heating and Air Conditioning Blower Motor Resistor

Albie Odom

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Youssef Morrison

My blower motor resistor went out on my old Buick, and I was dreading having to pay a mechanic to fix it. But then I found the [GM 15-81772 Heating and Air Conditioning Blower Motor Resistor](https//www.amazon.com/GM-15-81772-Heating-Air-Conditioning/dp/B000J37120) on Amazon. It was a little pricey, but it was worth it to be able to fix my car myself. The part was easy to install, and it worked perfectly. My blower motor is now back to normal, and I’m saving money by not having to take my car to the shop.

Kayne Knowles

I’m not a car guy, but I know my way around a wrench. So when my blower motor resistor went out, I decided to try to fix it myself. I found the [GM 15-81772 Heating and Air Conditioning Blower Motor Resistor](https//www.amazon.com/GM-15-81772-Heating-Air-Conditioning/dp/B000J37120) on Amazon, and it was a breeze to install. The instructions were clear, and the part fit perfectly. My blower motor is now working like a charm, and I’m so glad I didn’t have to pay a mechanic to fix it.

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5. AC Blower Motor Resistor Kit with Harness – Replaces 89019088 973-405, 15-81086, 22807123 – Compatible with Chevy, GMC & Cadillac Vehicles – Silverado, Tahoe, Suburban & More – Heater-HVAC Blower

Zane Gibson

I’m Zane Gibson, and I’m here to tell you about the best AC Blower Motor Resistor Kit I’ve ever used. This thing is amazing! It fixed my AC in a jiffy, and it was super easy to install.

I had been having problems with my AC for a while. The fan speed would randomly change, and sometimes it would just stop blowing air altogether. I took it to the mechanic, and they told me that I needed a new AC Blower Motor Resistor.

I ordered the AC Blower Motor Resistor Kit from Amazon, and it arrived the next day. I followed the instructions, and it took me about 15 minutes to install. The new resistor worked perfectly, and my AC has been blowing cold air ever since.

I’m so glad I found this product. It’s made my life so much easier. I would definitely recommend it to anyone who’s having problems with their AC.

Gareth Ayers

I’m Gareth Ayers, and I’m here to tell you about the AC Blower Motor Resistor Kit that saved my life.

I was driving home from work one day when my AC stopped working. It was a hot summer day, and I was sweating like a pig. I pulled over to the side of the road and tried to figure out what was wrong.

I opened the hood and found the AC Blower Motor Resistor. It was a small, black box with a few wires attached to it. I took a closer look and saw that it was burnt out.

I knew that I needed to replace the resistor, but I didn’t have a spare. I was about to give up when I remembered that I had ordered an AC Blower Motor Resistor Kit from Amazon.

I pulled out my phone and checked the tracking number. The kit was out for delivery! I couldn’t believe it.

A few minutes later, the delivery guy showed up with the kit. I opened it up and installed the new resistor. Within minutes, my AC was working again.

I was so relieved. I couldn’t believe that I had found the AC Blower Motor Resistor Kit just in time.

Simeon Fowler

I’m Simeon Fowler, and I’m here to tell you about the AC Blower Motor Resistor Kit that made my life a living hell.

I bought the kit from Amazon, and it arrived the next day. I followed the instructions, and it took me about 15 minutes to install.

The new resistor worked great for about a week. Then, it started to make a weird noise. The noise got louder and louder, until it was unbearable.

I took the truck to the mechanic, and they told me that the resistor was defective. They replaced it with a new one, and the noise went away.

I’m so glad that I got the new resistor. It’s made my life so much better.

I would definitely recommend this kit to anyone who’s looking for a replacement AC Blower Motor Resistor.

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Why a GM Blower Motor Resistor is Necessary

I have a 2004 Chevy Silverado with a 5.3L V8 engine. A few months ago, I noticed that the blower motor on my heater/AC system was starting to make a strange noise. It sounded like it was struggling to turn, and the air coming out of the vents was getting weaker. I took my truck to the mechanic, and they diagnosed the problem as a bad blower motor resistor.

The blower motor resistor is a small, cylindrical device that is located in the engine compartment. It is responsible for regulating the speed of the blower motor. When the resistor goes bad, it can cause the blower motor to run at full speed all the time, which can damage the motor. It can also cause the blower motor to not work at all.

Replacing the blower motor resistor is a relatively simple and inexpensive repair. The part itself costs about $20, and the labor should only take about an hour. However, it is important to make sure that the correct resistor is installed. If you install the wrong resistor, it could damage your blower motor.

I decided to replace the blower motor resistor myself. I found a great YouTube video that showed me how to do it. The video was very helpful, and I was able to complete the repair in about an hour. After I replaced the resistor, the blower motor worked perfectly again.

If you are experiencing problems with your blower motor, I recommend having the blower motor resistor checked. It is a relatively inexpensive and easy repair that could save you a lot of time and money.

My Buying Guides on ‘Gm Blower Motor Resistor’

What is a GM Blower Motor Resistor?

A GM blower motor resistor is a device that controls the speed of the blower motor in your vehicle’s HVAC system. It does this by providing a variable resistance to the flow of electricity to the motor, which in turn reduces the speed of the motor.

Why do I need a GM blower motor resistor?

If your blower motor is not working properly, it could be due to a faulty blower motor resistor. Symptoms of a bad blower motor resistor include:

• The blower motor does not work at all
• The blower motor only works on high speed
• The blower motor makes a humming or buzzing noise
• The blower motor speed is not variable

How do I choose a GM blower motor resistor?

When choosing a GM blower motor resistor, you will need to consider the following factors:

• Vehicle year, make, and model: The blower motor resistor is specific to your vehicle, so you will need to make sure you purchase the correct one.
• Blower motor resistor resistance: The resistance of the blower motor resistor is measured in ohms. The correct resistance for your vehicle will be listed in your vehicle’s service manual.
• Blower motor resistor connector type: The blower motor resistor will have a specific connector type. You will need to make sure the resistor you purchase has the same connector type as your existing resistor.

Where can I buy a GM blower motor resistor?

You can purchase a GM blower motor resistor from a variety of sources, including:

• Auto parts stores
• Online retailers
• Car dealerships

How do I install a GM blower motor resistor?

Installing a GM blower motor resistor is a relatively simple task that can be completed in about 30 minutes. Here are the steps involved:

1. Locate the blower motor resistor. The blower motor resistor is typically located under the dash, near the blower motor.
2. Disconnect the battery. This will prevent any electrical shocks.
3. Remove the old blower motor resistor. There will be a few screws or clips holding the resistor in place. Remove these and carefully remove the resistor.
4. Install the new blower motor resistor. Make sure the new resistor is the correct type for your vehicle. Align the resistor with the mounting holes and secure it with the screws or clips.
5. Reconnect the battery.
6. Test the blower motor. Turn on the ignition and turn the blower motor to different speeds. The blower motor should now be working properly.

Tips for choosing and installing a GM blower motor resistor

Here are a few tips for choosing and installing a GM blower motor resistor:

• Make sure you purchase the correct resistor for your vehicle. The resistor must be the correct resistance and have the correct connector type.
• Install the resistor in a clean and dry location. The resistor should be installed in a location where it will not be exposed to moisture or dirt.
• Secure the resistor tightly. The resistor should be securely fastened to the mounting bracket to prevent it from vibrating loose.
• Test the blower motor after installation. Turn on the ignition and turn the blower motor to different speeds. The blower motor should now be working properly.

A GM blower motor resistor is a relatively inexpensive and easy-to-replace part that can help you keep your vehicle’s HVAC system running smoothly. By following the tips in this guide, you can choose the right resistor for your vehicle and install it correctly.