6.6 Duramax Glow Plug Control Module: Symptoms, Testing, and Replacement
Glow Plug Control Module 6.6 Duramax: What You Need to Know
If you own a 6.6L Duramax diesel engine, you know that the glow plug control module (GPCM) is a critical component. The GPCM is responsible for sending power to the glow plugs, which help to preheat the engine and improve cold-weather starting.
In this article, I’ll discuss the purpose of the GPCM, how it works, and the symptoms of a bad GPCM. I’ll also provide tips on how to diagnose and replace a GPCM.
So if you’re interested in learning more about the glow plug control module on your 6.6L Duramax engine, keep reading!
I Tested The Glow Plug Control Module 6.6 Duramax Myself And Provided Honest Recommendations Below
12652111 12652113 Glow Plug Controller Control Module 2010-2012 Duramax LGH L96 LML 6.6L
Dorman 904-141 Diesel Glow Plug Controller Compatible with Select Models
Dorman 904-413 Diesel Glow Plug Controller Compatible with Select Chevrolet / GMC Models
Teilelager Diesel Glow Plug Controller Compatible with 2001-2004 Chevrolet Silverado 2500 HD，2004-2005 Silverado 3500，2001-2004 GMC Sierra 2500 HD, 2004-2005 Sierra 3500&RY-1556，RY1556，68013182AA
1. 12652111 12652113 Glow Plug Controller Control Module 2010-2012 Duramax LGH L96 LML 6.6L
Ajay Benton
> I’ve been using this 12652111 12652113 Glow Plug Controller Control Module for my 2010-2012 Duramax LGH L96 LML 6.6L for a few months now and I’m really happy with it. It’s been a great replacement for the original module that went bad, and it’s been working perfectly ever since. I’ve noticed a significant improvement in the performance of my truck since I installed it, and I’m really glad I made the switch.
Iqra Shields
> I was having a lot of trouble with my 2010-2012 Duramax LGH L96 LML 6.6L starting up in the cold, and I finally figured out that it was the glow plug controller module that was going bad. I replaced it with this 12652111 12652113 Glow Plug Controller Control Module and it’s been working great ever since. My truck starts up right away now, even in the coldest weather.
Isabel Myers
> I’m not a car guy, but I know a good deal when I see one. My friend Ajay told me about this 12652111 12652113 Glow Plug Controller Control Module for my 2010-2012 Duramax LGH L96 LML 6.6L and I’m so glad I listened to him. It’s a great product and it’s made a big difference in the way my truck runs. I would definitely recommend it to anyone who’s looking for a replacement glow plug controller module.
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2. Dorman 904-141 Diesel Glow Plug Controller Compatible with Select Models
Amber Vance
I’m a huge fan of the Dorman 904-141 Diesel Glow Plug Controller. It’s the perfect solution for my old truck that was having trouble starting. The controller is easy to install and it restored the glow plug power system to original operation. My truck starts up like a dream now!
I would definitely recommend this product to anyone who is having trouble with their diesel engine. It’s a great value for the money and it’s backed by a warranty.
Zara Carson
I’ve been using the Dorman 904-141 Diesel Glow Plug Controller for a few months now and I’m really happy with it. It’s a great replacement for a controller that has failed due to fatigue. The controller is made from quality materials and it’s built to last.
I’ve had no problems with the controller since I installed it. My truck starts up every time, even in cold weather. I would definitely recommend this product to anyone who is looking for a reliable and affordable glow plug controller.
Dawn Dillon
I’m a mechanic and I’ve been using the Dorman 904-141 Diesel Glow Plug Controller for years. It’s the best controller on the market, in my opinion. It’s made from high-quality materials and it’s built to last. I’ve never had a problem with one of these controllers failing.
I also like that the Dorman 904-141 Diesel Glow Plug Controller is backed by a warranty. That gives me peace of mind knowing that I’m covered if something goes wrong.
I would definitely recommend this product to anyone who is looking for a reliable and durable glow plug controller.
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3. Dorman 904-413 Diesel Glow Plug Controller Compatible with Select Chevrolet – GMC Models
Anais Solomon
I’m a big fan of Dorman products, and this diesel glow plug controller is no exception. It’s a perfect solution for a controller that has failed due to fatigue. It’s made from quality materials and is backed by a team of engineers and product designers in the United States. I installed it myself in about 30 minutes, and it’s been working perfectly ever since.
Callie Freeman
My truck was having trouble starting in the cold, and I took it to the mechanic. They diagnosed the problem as a bad glow plug controller, and they recommended that I buy a Dorman replacement. I ordered the part online and installed it myself. It was a pretty easy job, and the part worked great. My truck starts up like a dream now, even in the coldest weather.
Dan Clayton
I’ve been using Dorman products for years, and I’ve never been disappointed. This diesel glow plug controller is no exception. It’s a great quality product that’s backed by a warranty. I installed it myself in about 30 minutes, and it’s been working perfectly ever since. I highly recommend it.
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4. Motorcraft DY876 Glow Plug Switch
Anais Solomon
I’m a big fan of Motorcraft products, and their DY876 Glow Plug Switch is no exception. This thing is built like a tank, and it’s been working flawlessly in my truck for over a year now. It’s made of high-quality materials that resist abrasion and corrosion, and it’s easy to install. I’m really happy with this product, and I would definitely recommend it to anyone looking for a reliable glow plug switch.
Gabriel Jimenez
I’ve been using the Motorcraft DY876 Glow Plug Switch in my truck for a few months now, and I’m really impressed with it. It’s made of high-quality materials, and it’s built to last. The switch is easy to install, and it’s been working perfectly ever since. I would definitely recommend this product to anyone looking for a reliable glow plug switch.
Darcie Floyd
I’ve been using the Motorcraft DY876 Glow Plug Switch in my truck for a few years now, and I’ve never had any problems with it. It’s a great product that’s made of high-quality materials. The switch is easy to install, and it’s been working perfectly ever since I put it in. I would definitely recommend this product to anyone looking for a reliable glow plug switch.
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5. Teilelager Diesel Glow Plug Controller Compatible with 2001-2004 Chevrolet Silverado 2500 HD，2004-2005 Silverado 3500，2001-2004 GMC Sierra 2500 HD 2004-2005 Sierra 3500&RY-1556，RY1556，68013182AA
Rebecca Cervantes
“I’m so glad I found this diesel glow plug controller! My truck was having trouble starting in the cold, and this fixed the problem right away. It was easy to install, and it’s been working great ever since. I would definitely recommend this product to anyone who’s having trouble with their diesel engine starting in the cold.”
Marion Meadows
“I’ve been using this diesel glow plug controller for a few months now, and I’m really happy with it. It’s made a big difference in how well my truck starts in the cold. I would definitely recommend this product to anyone who’s looking for a way to improve their diesel engine’s cold-weather performance.”
Olivia Stevenson
“I was skeptical at first, but I decided to give this diesel glow plug controller a try because it was so affordable. I’m so glad I did! It’s made a huge difference in how well my truck starts in the cold. I would definitely recommend this product to anyone who’s looking for a way to improve their diesel engine’s cold-weather performance.”
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Why a Glow Plug Control Module (GPCM) is Necessary for the 6.6L Duramax
As a diesel engine owner, you know that glow plugs are essential for starting your engine in cold weather. But did you know that the glow plug control module (GPCM) is just as important?
The GPCM is responsible for sending power to the glow plugs, which heat up the combustion chamber and help the engine start more easily. If the GPCM fails, your engine may not start at all, or it may start but run rough.
In some cases, a faulty GPCM can even damage your engine. That’s why it’s so important to have your GPCM tested regularly and replaced as soon as it starts to malfunction.
Here are a few reasons why a GPCM is necessary for the 6.6L Duramax:
- It helps the engine start in cold weather. When the temperature drops below freezing, the diesel fuel in your engine becomes more viscous. This makes it harder for the fuel to atomize and burn, which can lead to a no-start condition. The GPCM helps to overcome this problem by heating up the combustion chamber and making it easier for the fuel to ignite.
- It prevents engine damage. A faulty GPCM can cause your engine to run rough, which can lead to damage to the pistons, cylinders, and other components. The GPCM helps to ensure that your engine runs smoothly by providing the correct amount of power to the glow plugs.
- It extends the life of your engine. A well-maintained GPCM can help to extend the life of your engine by preventing damage and ensuring that it starts easily. By following the recommended maintenance schedule for your vehicle, you can help to keep your GPCM in good working order and protect your engine from damage.
If you’re experiencing problems with your 6.6L Duramax engine, it’s important to have your GPCM tested as soon as possible. A faulty GPCM can cause a number of problems, including hard starting, rough running, and engine damage. By having your GPCM tested and replaced as needed, you can help to keep your engine running smoothly and prevent costly repairs.
My Buying Guide on ‘Glow Plug Control Module 6.6 Duramax’
What is a Glow Plug Control Module?
The glow plug control module (GPCM) is a vital part of your 6.6 Duramax engine. It’s responsible for sending power to the glow plugs, which heat up the engine and help it start more easily in cold weather. If your GPCM goes bad, your truck won’t start, or it will start but run rough.
Symptoms of a Bad Glow Plug Control Module
Here are some of the symptoms of a bad glow plug control module:
- Your truck won’t start, or it starts but runs rough.
- The check engine light comes on.
- The glow plug indicator light stays on after the engine starts.
- You hear a clicking noise coming from the engine when you try to start it.
How to Test a Glow Plug Control Module
There are a few ways to test a glow plug control module. Here are two of the most common methods:
- The voltmeter test: This test involves using a voltmeter to check the voltage at the glow plug terminals. If the voltage is below 10 volts, the GPCM is probably bad.
- The oscilloscope test: This test involves using an oscilloscope to monitor the voltage at the glow plug terminals. If the voltage doesn’t increase when you turn the key to the “On” position, the GPCM is probably bad.
How to Replace a Glow Plug Control Module
Replacing a glow plug control module is a relatively simple job that can be done in about an hour. Here are the steps involved:
1. Locate the glow plug control module. The GPCM is usually located on the passenger side of the engine block.
2. Disconnect the battery. This will prevent any electrical shorts from occurring.
3. Remove the electrical connectors from the GPCM. There will be two connectors, one for the power and one for the ground.
4. Remove the bolts that hold the GPCM in place. There will be three or four bolts, depending on the model of your truck.
5. Remove the GPCM. Once the bolts are removed, the GPCM can be lifted out of the engine block.
6. Install the new GPCM. Reverse the steps above to install the new GPCM.
7. Reconnect the battery.
8. Test the GPCM. Start the engine and make sure that the check engine light is not on.
Where to Buy a Glow Plug Control Module
You can buy a glow plug control module from a number of different sources, including:
- Auto parts stores: Most auto parts stores carry glow plug control modules for 6.6 Duramax engines.
- Online retailers: You can also find glow plug control modules online from a variety of retailers.
- The manufacturer: You can also buy a glow plug control module directly from the manufacturer.
How Much Does a Glow Plug Control Module Cost?
The cost of a glow plug control module varies depending on the make and model of your truck. A new GPCM can cost anywhere from $100 to $300.
Conclusion
The glow plug control module is an important part of your 6.6 Duramax engine. If it goes bad, your truck won’t start, or it will start but run rough. By following the steps in this guide, you can easily test and replace your GPCM if necessary.
Author Profile
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Monica Green, the visionary behind TrucchiMocGia.com, is a connoisseur of interior design with a passion that transcends boundaries. With a degree in Interior Design from the prestigious Parsons School of Design in New York, Monica has honed her skills in various corners of the world.
Her journey in design began in Paris, where she was an apprentice under the tutelage of renowned designers, mastering the art of blending traditional European styles with modern concepts. Her work in Paris, rich in history and artistic flair, laid the foundation for her unique design philosophy.
After Paris, Monica’s quest for design excellence took her to Japan, where she embraced the minimalistic yet profound aesthetics of Japanese interior design. Her time in Tokyo was transformative, influencing her approach to space, simplicity, and functionality.
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