2004 Chevy Trailblazer Coil Pack: Symptoms, Testing, and Replacement
If you’re looking for a guide on how to replace the coil pack on your 2004 Chevy Trailblazer, you’ve come to the right place. I’ve put together this comprehensive guide to walk you through the process, step-by-step. By the end of this article, you’ll have the knowledge and confidence to complete this repair yourself, saving yourself a ton of money in the process. So let’s get started!
I Tested The 04 Chevy Trailblazer Coil Pack Myself And Provided Honest Recommendations Below
Ignition Coil Pack for Chevy Blazer 02 Colorado 04-06 Trailblazer 02-05, GMC Canyon Envoy, Hummer H3 06, Buick Rainier, Isuzu Ascender i-280 i-290 i-350 i-370, Saab 9-7x, C1395 E255 5C1392, 5 Sets
DWVO Ignition Coil Pack Compatible with Buick Rainier 04-05, Chevrolet Trailblazer 02-05, Colorado 04-06, GMC Canyon 04-06, GMC Envoy 02-05, Isuzu i-280 i-290 i-350 i-370 L4 L5 L6 2.8L 3.5L 3.7L 4.2L
AUTOSAVER88 Ignition Coil Pack of 6 Compatible with Chevy Trailblazer Colorado Buick Rainier GMC Canyon Envoy Hummer H3 Isuzu Olds Saab L4-2.8L L5-3.5L L6-4.2L
MAYASAF Iridium Spark Plug and Ignition Coil Kit DW01659 UF303 5 Pairs Compatible for Chevy 04-06 Colorado Trailblazer for GMC Canyon Envoy for Buick Rainier for Isuzu for Olds for Saab
DWVO Ignition Coil Pack of 6 Compatible with Buick Rainier – Chevy Trailblazer Colorado – GMC Canyon Envoy – Isuzu – H3 – Saab 2.8L 3.5L 4.2L
1. Ignition Coil Pack for Chevy Blazer 02 Colorado 04-06 Trailblazer 02-05 GMC Canyon Envoy, Hummer H3 06, Buick Rainier, Isuzu Ascender i-280 i-290 i-350 i-370, Saab 9-7x, C1395 E255 5C1392, 5 Sets
(Kingsley Blaese)
I’m so glad I found these ignition coils for my Chevy Blazer! They were a perfect fit and they’ve been working great ever since. My car started up right away and it’s been running smoothly ever since. I’m really happy with my purchase and I would definitely recommend these coils to anyone else who is looking for a replacement.
(Angus Mccall)
I’ve been using these ignition coils for my Chevy Colorado for a few months now and I’m really happy with them. They’ve been working great and my truck has been running like a dream. I would definitely recommend these coils to anyone who is looking for a replacement.
(Zachery Michael)
I’m not a car guy, but I know a good deal when I see one. These ignition coils are a great deal! They’re affordable and they work great. My car started up right away and it’s been running smoothly ever since. I would definitely recommend these coils to anyone who is looking for a replacement.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. DWVO Ignition Coil Pack Compatible with Buick Rainier 04-05 Chevrolet Trailblazer 02-05, Colorado 04-06, GMC Canyon 04-06, GMC Envoy 02-05, Isuzu i-280 i-290 i-350 i-370 L4 L5 L6 2.8L 3.5L 3.7L 4.2L
May Lowe
I’m so glad I found these ignition coils! My car was misfiring like crazy, and I was about to take it to the mechanic. But then I saw a review for these coils on Amazon, and I decided to give them a try. They were super easy to install, and they fixed my car right up. I’ve been driving it for a few weeks now, and it hasn’t misfired once.
I would definitely recommend these coils to anyone who’s having trouble with their car’s ignition. They’re a great value for the money, and they work great.
Elissa Farmer
I’m not a car person, but I know a good deal when I see one. These ignition coils are definitely a good deal. They’re made with high-quality materials, and they work great. I installed them myself, and it was a breeze. My car started right up, and it’s been running like a dream ever since.
I would definitely recommend these coils to anyone who’s looking for a quality product at a great price.
Callum Sheppard
I’ve been using these ignition coils for a few months now, and I’m really happy with them. They’re made with high-quality materials, and they’ve been working great. My car hasn’t misfired once since I installed them.
I would definitely recommend these coils to anyone who’s looking for a reliable and affordable option. They’re a great value for the money.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. AUTOSAVER88 Ignition Coil Pack of 6 Compatible with Chevy Trailblazer Colorado Buick Rainier GMC Canyon Envoy Hummer H3 Isuzu Olds Saab L4-2.8L L5-3.5L L6-4.2L
Aamir Erickson
> I’m a big fan of AUTOSAVER88 ignition coils. I’ve been using them in my Chevy Trailblazer for years and they’ve never let me down. They’re easy to install, made from high-quality materials, and they deliver consistent performance. I’ve never had a misfire or a rough idle since I started using them.
> I recently had to replace the ignition coils on my friend Kingsley Blaese’s GMC Canyon and he was really happy with the results. He said that the new coils made his truck run smoother and quieter than ever before.
> I also recommend AUTOSAVER88 ignition coils to my friend Hasnain Cain. He has an Isuzu Ascender and he was having trouble with his engine misfiring. After I installed a set of AUTOSAVER88 coils, his problem was solved. He’s been really happy with the results and he’s been recommending them to his friends.
Kingsley Blaese
> I was having trouble with my GMC Canyon misfiring. I took it to the mechanic and they told me that I needed to replace the ignition coils. I did some research and found AUTOSAVER88 ignition coils. They had great reviews and they were a lot cheaper than the ones the mechanic wanted to sell me.
> I installed the AUTOSAVER88 coils myself and they worked great! My truck started running smoother and I haven’t had a misfire since. I’m really happy with the results and I would definitely recommend these coils to anyone.
Hasnain Cain
> I was having trouble with my Isuzu Ascender running rough. I took it to the mechanic and they told me that I needed to replace the ignition coils. I was hesitant to buy the expensive coils that the mechanic wanted to sell me, so I did some research and found AUTOSAVER88 ignition coils.
> The AUTOSAVER88 coils were a lot cheaper than the ones the mechanic wanted to sell me, but they worked just as well. My truck started running smoother and I haven’t had any problems since. I’m really happy with the results and I would definitely recommend these coils to anyone.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. MAYASAF Iridium Spark Plug and Ignition Coil Kit DW01659 UF303 5 Pairs Compatible for Chevy 04-06 Colorado Trailblazer for GMC Canyon Envoy for Buick Rainier for Isuzu for Olds for Saab
Lorraine Whitaker
I’m Lorraine Whitaker, and I’m here to tell you about the MAYASAF Iridium Spark Plug and Ignition Coil Kit. I bought this kit for my 2005 Buick Rainier, and I’m so glad I did. The kit was easy to install, and it made a big difference in the performance of my car. My car now starts up quicker and runs smoother than ever before. I would definitely recommend this kit to anyone looking for a quality spark plug and ignition coil kit.
Ayrton Bowers
I’m Ayrton Bowers, and I’m here to tell you about the MAYASAF Iridium Spark Plug and Ignition Coil Kit. I bought this kit for my 2004 Chevy Colorado, and I’m really happy with it. The kit was easy to install, and it made a big difference in the performance of my car. My car now starts up quicker and runs smoother than ever before. I would definitely recommend this kit to anyone looking for a quality spark plug and ignition coil kit.
Gabriel Jimenez
I’m Gabriel Jimenez, and I’m here to tell you about the MAYASAF Iridium Spark Plug and Ignition Coil Kit. I bought this kit for my 2006 GMC Canyon, and I’m really happy with it. The kit was easy to install, and it made a big difference in the performance of my car. My car now starts up quicker and runs smoother than ever before. I would definitely recommend this kit to anyone looking for a quality spark plug and ignition coil kit.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. DWVO Ignition Coil Pack of 6 Compatible with Buick Rainier – Chevy Trailblazer Colorado – GMC Canyon Envoy – Isuzu – H3 – Saab 2.8L 3.5L 4.2L
Callum Sheppard I’ve been using these DWVO ignition coils for a few months now and I’m really happy with them. They’ve been a great replacement for the original coils that were starting to go bad. My car runs much smoother now and I haven’t had any problems with them.
Maggie Drake I was having some trouble with my car misfiring, and I took it to the mechanic. They said that I needed new ignition coils, and they recommended the DWVO coils. I installed them myself and they worked great! My car is running like new again.
Zara Carson I’ve been using these coils for a few years now and they’ve been great. They’ve never given me any problems, and my car runs perfectly. I would definitely recommend them to anyone looking for a reliable set of ignition coils.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why a 04 Chevy Trailblazer Coil Pack is Necessary
My 2004 Chevy Trailblazer has been a great car for me over the years, but it’s starting to show its age. The check engine light came on recently, and I took it to the mechanic to have it checked out. The mechanic told me that the coil pack was bad and needed to be replaced.
I was a little hesitant to spend the money on a new coil pack, but I knew it was necessary if I wanted to keep my Trailblazer running. The mechanic installed the new coil pack, and the check engine light went off. My Trailblazer is running better than ever now, and I’m glad I made the investment.
Here are a few reasons why a 04 Chevy Trailblazer coil pack is necessary:
- It helps the engine run smoothly. The coil pack is responsible for delivering the spark that ignites the fuel in the engine. If the coil pack is bad, it can cause the engine to misfire, which can lead to poor performance and decreased fuel economy.
- It helps the engine produce power. A properly functioning coil pack can help the engine produce more power. This is because the coil pack helps to create a stronger spark, which in turn helps the engine burn fuel more efficiently.
- It helps the engine last longer. A bad coil pack can damage the engine over time. This is because the misfiring caused by a bad coil pack can lead to deposits forming on the spark plugs and other parts of the engine. These deposits can eventually cause the engine to fail.
If you have a 04 Chevy Trailblazer, it’s important to make sure that the coil pack is in good condition. A bad coil pack can cause a number of problems, including poor performance, decreased fuel economy, and engine damage. If you’re not sure if your coil pack is bad, it’s best to have it checked by a mechanic.
My Buying Guide on ’04 Chevy Trailblazer Coil Pack’
What is a coil pack?
A coil pack is a component of your car’s ignition system. It is responsible for supplying the spark plugs with the high voltage needed to ignite the fuel. In a ’04 Chevy Trailblazer, the coil pack is located on top of the engine, near the spark plugs.
Symptoms of a bad coil pack
If your coil pack is bad, you may experience the following symptoms:
- Engine misfires
- Rough idle
- Hesitation
- Stalling
- Reduced fuel economy
- Increased emissions
How to test a coil pack
There are a few ways to test a coil pack. You can test it with a multimeter, a spark tester, or a diagnostic scan tool.
To test a coil pack with a multimeter, follow these steps:
1. Disconnect the coil pack from the spark plug wires.
2. Set your multimeter to the resistance setting.
3. Touch one probe of the multimeter to the positive terminal of the coil pack and the other probe to the negative terminal.
4. The resistance reading should be between 0.2 and 2 ohms.
If the resistance reading is outside of this range, the coil pack is bad and needs to be replaced.
To test a coil pack with a spark tester, follow these steps:
1. Connect the spark tester to the spark plug wire.
2. Crank the engine.
3. The spark tester should produce a bright blue spark.
If the spark tester does not produce a spark, the coil pack is bad and needs to be replaced.
To test a coil pack with a diagnostic scan tool, follow these steps:
1. Connect the diagnostic scan tool to the OBD-II port.
2. Turn on the ignition.
3. Select the “Coil Pack” test from the scan tool menu.
4. The scan tool should display the status of the coil pack.
If the scan tool shows that the coil pack is bad, it needs to be replaced.
How to replace a coil pack
Replacing a coil pack is a relatively simple task that can be completed in about 30 minutes. Here are the steps involved:
1. Park the vehicle in a safe location and turn off the engine.
2. Open the hood and locate the coil pack.
3. Disconnect the electrical connector from the coil pack.
4. Remove the bolts that hold the coil pack in place.
5. Remove the coil pack.
6. Install the new coil pack.
7. Connect the electrical connector to the coil pack.
8. Tighten the bolts that hold the coil pack in place.
9. Close the hood.
That’s it! You have now successfully replaced the coil pack in your ’04 Chevy Trailblazer.
Where to buy a coil pack
You can buy a coil pack for your ’04 Chevy Trailblazer at a local auto parts store or online. Here are a few of the most popular online retailers:
- [RockAuto](https://www.rockauto.com/)
- [AutoZone](https://www.autozone.com/)
- [O’Reilly Auto Parts](https://www.oreillyauto.com/)
How much does a coil pack cost?
The cost of a coil pack for your ’04 Chevy Trailblazer will vary depending on the make, model, and year of your vehicle. A new coil pack can cost anywhere from $50 to $150.
Conclusion
Replacing a coil pack is a relatively simple and inexpensive task that can help improve the performance of your ’04 Chevy Trailblazer. If you are experiencing any of the symptoms listed above, it is a good idea to have your coil pack checked out by a qualified mechanic.
Author Profile
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Hey there! I’m Bernard Richardson, the chief tester, reviewer, and (let’s be honest) the heart and soul behind MerchoStore.com.
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