Ignition Coil Guide for the 2008-2014 Chevrolet Express 1500
Keep your workhorse running strong by understanding ignition coil failure and choosing the right replacement.
- Check your engine's trouble codes first to identify which cylinder is misfiring.
- Visually inspect your existing coils to confirm the shape (square vs. round) before ordering replacements.
- It is highly recommended to replace all eight coils and the spark plugs at the same time for long-term reliability.
- Brands like ACDelco and Delphi are OEM quality; Standard Ignition (SMP) is a reliable mid-range choice.
Is Your Express Van Running Rough? It Could Be an Ignition Coil.
If your Chevrolet Express 1500 is starting to run poorly, the problem might be a failing ignition coil. These parts are critical for engine performance, and when one goes bad, you'll definitely feel it. Symptoms often include a rough idle, shaking, and a noticeable loss of power when you accelerate. 🎬 Watch: Learn more about the common symptoms of a bad ignition coil. You might also see your Check Engine Light come on. This guide will walk you through the common symptoms, help you choose the right aftermarket replacement, and explain what's involved in the repair.
Important Note on Coil Shape
GM used two different styles of ignition coils on these Vortec engines: a square-shaped coil and a round or "Delphi" style coil. Before ordering, it is critical to visually inspect your current coils to ensure you purchase the correct shape for your specific vehicle.
Choosing the Right Aftermarket Ignition Coil
When it comes to aftermarket parts, quality can vary. For a critical component like an ignition coil, it's important to understand the different tiers of brands available.
How Much Does It Cost to Replace an Ignition Coil?
The cost depends on whether you do the work yourself or take it to a shop. Since the Express 1500 has eight coils, many owners and mechanics recommend replacing all of them at the same time, especially if the vehicle has high mileage. This can prevent future failures and save on labor down the road.
Pro Tip: While You're In There...
If you're replacing ignition coils with over 100,000 miles on them, it's a perfect time to replace the spark plugs and spark plug wires as well. Worn spark plugs can strain the ignition coils, causing them to fail prematurely. Replacing all these components at once is a smart preventative measure.
🎬 See this complete walkthrough for replacing coils, plugs, and wires.Frequently Asked Questions
Is it hard to replace the ignition coils on an Express van?
The difficulty is moderate. The front coils are easy to access once the engine cover inside the van (the "doghouse") is removed. However, accessing the rear coils can be more challenging due to limited space. The job requires basic hand tools like a ratchet with 7mm or 10mm sockets. Several videos online demonstrate the process of removing the doghouse and accessing the coils.
🎬 Watch: A step-by-step guide to replacing ignition coils on your Express van.Should I replace all 8 ignition coils at once?
It is highly recommended. Ignition coils are wear items, and they tend to fail around the same time. If one has failed due to age and heat, others are likely to fail soon. Replacing them all at once saves you from repeated repairs and potential breakdowns.
What's the difference between ACDelco and Delphi coils?
Delphi was the original parts-making division of General Motors. For many components, a Delphi part is the same as the one sold in an ACDelco box, but often at a lower price. Both are considered excellent choices for your Express van.
Are there any recalls for ignition coils on this van?
No, a search of NHTSA records did not find any safety recalls specifically for ignition coils on the 2008-2014 Chevrolet Express 1500. There was a major GM ignition switch recall, but this affected different vehicles and was related to the key ignition, not the ignition coils themselves.
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Technical Specifications
OEM Part Numbers: 12629434 12573190 12611424
This vehicle uses a coil-on-plug (COP) ignition system with eight individual coils. Coils come in two distinct physical shapes (square or round); visual confirmation is required before purchase. Each coil is held in place by two small bolts.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Chevrolet Express 1500: