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If your 2004-2012 GMC Canyon is sputtering, hesitating, or showing a check engine light, a faulty ignition coil is a common cause. Choosing the right ignition coil matters because the wrong unit can lead to recurring misfires, rough idle, poor fuel economy, or even damage to the catalytic converter. This guide highlights the top ignition coils selected specifically for the 2004-2012 GMC Canyon and explains the technical and fitment details that matter.We shortlisted coils that match factory electrical specs and mounting for this model year range, then evaluated durability and electrical reliability. Below are the picks and the decision factors we used to vet them, followed by practical guidance for testing, replacement, and troubleshooting.
Looking for other parts? See all GMC Canyon parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | ECCPP Set of 6 Ignition Coils UF303 (pack) |  |
| Best Quality Built to a higher standard if you want something more solid | ECCPP UF497 Ignition Coil Pack with Iridium Spark Plugs (Set of 5) |  |
| Best Value The sweet spot between price and what you get | MAS Ignition Coil Pack Set of 5, Vehicle-Specific Replacement |  |
| Best Budget The cheapest option that still gets the job done reliably | MAS Ignition Coil Pack UF303 Replacement |  |
| Highest Rated A top-rated pick with lots of positive feedback | X4XZ UF303 Ignition Coil Pack and Double Iridium Spark Plug Kit (Set of 6) |  |
| Most Popular A crowd favorite that many people choose with confidence | ENA Set of 6 Ignition Coil Packs Compatible with 2.8L–4.2L Engines |  |
| Best Seller A high-volume bestseller chosen again and again | NPAUTO Ignition Coil Pack Kit, set of 6 (UF-303 C1395) |  |
1. ECCPP Set of 6 Ignition Coils UF303 (pack)
| Connector Gender | Male-to-Female |
|---|---|
| Installation Type | Bolt-On or Screw-In |
| Compatible with Vehicle Type | Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Saab |
| Manufacturer Part Number | UF303 5C1392 GN10114 |
These ECCPP ignition coils are a direct-fit replacement pack of six built to match the UF303 coil specification used on certain GM V6 and I4 engines. They bolt into the factory mounting points and use the same male-to-female connector layout, so installation is straightforward for a DIYer or a technician working on a Canyon with the correct engine and year. The pack is marketed as matching common OEM part numbers and emphasizes epoxy molding and rubber contacts to resist heat and electrical leakage, which helps reduce misfires and rough idle when compared with a failing coil. Because this is an aftermarket replacement, quality can vary from OEM units but buyers report the set restores normal running and clears ignition-related fault codes when the coils are the cause. If you plan to replace multiple coils at once it is convenient to get a full pack and change spark plugs at the same time to ensure consistent performance. Verify vehicle fitment carefully against the listed UF303 interchange numbers before installing to avoid ordering the wrong coil for your specific GMC Canyon year and engine.
Best for: Buyers who want a cost-effective, full-set replacement to restore proper ignition on a Canyon when multiple UF303 coils are suspected to be worn or failing and who value getting all coils at once for consistent performance.
Less Ideal for: Those seeking factory-brand replacement parts for guaranteed OEM matching or buyers unsure of their exact coil part number should avoid this and verify fitment first.
- Sold as a complete six-coil pack for replacing all cylinders at once
- Direct-fit design with bolt-on installation and factory-style electrical connector
- Lists multiple OEM equivalent part numbers for easier fit verification
- Epoxy‑filled housing and rubber contacts intended to resist heat and prevent electrical leakage
- Aftermarket quality may not match factory-brand coils and performance can vary between units
Verdict: A practical six-coil aftermarket pack for owners who want an affordable, full-set replacement to restore ignition performance on vehicles that use the UF303 coil.
2. ECCPP UF497 Ignition Coil Pack with Iridium Spark Plugs (Set of 5)
| Compatible with Vehicle Type | Chevrolet Colorado/Hummer/GMC Canyon 3.7L and 4.2L 2006–2012 |
|---|---|
| Included Components | 5 ignition coils and 5 iridium spark plugs |
| Core Material | Copper |
| Top Material Type | Nickel |
This ECCPP kit pairs five ignition coils with matching iridium spark plugs to replace worn components on compatible GM 3.7L and 4.2L engines. Intended as a direct-fit, vehicle-specific replacement, the coils use standard factory-style connectors and mounting so installation is straightforward for a DIYer with basic tools. The included iridium plugs help maintain a consistent spark and can reduce misfires, rough idle, and poor throttle response that result from failing coils or plugs. Materials called out include copper cores and nickel top components with epoxy resin insulation designed to resist high underhood temperatures. Practical benefits include restoring factory-like engine performance and fuel economy without modifying the ignition system, and replacing all five at once avoids uneven wear between cylinders. Limitations are that the kit is only for specific model years and engine sizes and will not fit other engines, and as an aftermarket replacement some units may show slight fitment or longevity variation compared with factory parts.
Best for: Drivers focused on returning a 2007–2012 GMC Canyon with a 3.7L engine to stable, performance-oriented running without upgrading the ignition system, and who prefer tackling replacement themselves.
Less Ideal for: If you want an upgraded performance ignition system or are restoring a vehicle outside the specified engines and years, choose a dedicated performance coil or a part matched to your exact engine variant instead.
- Full set replaces all ignition coils and spark plugs together so cylinders are matched
- Direct-fit design with factory-style connector and mounting for straightforward installation
- Iridium spark plugs included to improve spark consistency and reduce misfires
- Materials and epoxy insulation rated for high temperatures to handle underhood conditions
- Compatibility limited to specific GM 3.7L and 4.2L model years so not universal
- Aftermarket parts can vary slightly in longevity or fit compared with factory replacements
Verdict: Buy this kit to quickly restore consistent spark and engine response on compatible 3.7L/4.2L GM engines with a complete, direct-fit coil and plug replacement.
3. MAS Ignition Coil Pack Set of 5, Vehicle-Specific Replacement
| Vehicle Service Type | Car |
|---|---|
| Connector Gender | Male-to-Female |
| Installation Type | Plug In |
| Automotive Fit Type | Vehicle Specific Fit |
These MAS ignition coils replace the factory coil packs on a range of 3.5L and 3.7L naturally aspirated engines and are sold as a set of five for full-bank replacements. They plug into the stock wiring harness and address common ignition problems such as misfires, hard starts, loss of power, and check engine lights by restoring consistent spark delivery. The listing highlights compatibility with 2004–2006 Chevrolet Colorado and GMC Canyon 3.5L applications and several Isuzu and Hummer models using the same engine family. Practical benefits include a straightforward plug-in installation and bundled coils so you can replace all cylinders at once to avoid mixed-condition components. Limitations to note are that this is a direct replacement only for the specific engine applications listed and it does not include spark plugs or wiring; buyers should confirm part numbers match their vehicle before ordering. A one-year warranty is provided by the seller.
Best for: Buyers who want a practical, cost-conscious replacement to restore reliable ignition on affected 3.5L/3.7L vehicles and prefer swapping the full set at once to avoid mixed-condition coils.
Less Ideal for: If you need a performance upgrade, aftermarket high-output coil solution, or parts for other engine families, look for a different product targeted to those goals.
- Sold as a full set of five so all coils can be replaced at once
- Direct plug-in installation for vehicle-specific fit simplifies DIY swaps
- Addresses common ignition symptoms like misfires, hard starts, and reduced power
- Compatibility is limited to the specified 3.5L/3.7L applications so not universal
- Does not include spark plugs or additional ignition hardware
Verdict: A budget-minded, plug-in set of five coils that lets you replace all ignition coils at once to quickly restore factory-quality spark on compatible 3.5L/3.7L vehicles.
4. MAS Ignition Coil Pack UF303 Replacement
| Model Number | DQ50164 UF303 |
|---|---|
| Connector Gender | Male-to-Female |
| Automotive Fit Type | Vehicle Specific Fit |
| Installation Type | Plug In |
This MAS ignition coil pack is a direct-fit replacement for vehicles that use the UF303 family of coils and is intended to fix hard starts, misfires, rough idle, and related drivability problems. It installs as a plug-in unit and is typically used when a single coil or a bank of coils has failed or when preventive replacement is needed on higher-mileage engines. The listing highlights compatibility with several 2.8L, 3.5L, 3.7L, and 4.2L applications and calls out male-to-female connector fitment and vehicle-specific design. In practice the coil restores spark consistency and can stop check engine light triggers tied to ignition faults, which helps recover lost power and improve fuel economy. The product is lightweight and sold as a replacement part with a one-year warranty. Limitations include dependence on correct match to the vehicle and the need to address worn spark plugs or wiring to avoid premature coil stress; buyers should confirm the UF303 interchange before installing.
Best for: Buyers looking for an affordable, drop-in replacement coil to fix ignition faults on vehicles that use the UF303 fitment and who prioritize cost-effective repairs over premium brand parts.
Less Ideal for: Shoppers who want performance-tuned ignition upgrades or multi-vehicle fitment options should look at higher-end or universal aftermarket coils instead.
- Vehicle-specific plug-in design for straightforward installation
- Restores ignition consistency to address misfires and hard starts
- Compatible with common UF303 interchange numbers for easier fit confirmation
- Includes a one-year warranty for basic coverage
- Requires correct UF303 match and may fail sooner if used with aged spark plugs or wiring
Verdict: A budget-friendly, vehicle-specific replacement coil that gets UF303-equipped GMC Canyon engines back to reliable ignition performance without extra features.
5. X4XZ UF303 Ignition Coil Pack and Double Iridium Spark Plug Kit (Set of 6)
| Included Components | Ignition Coil Packs x6, Double Iridium Spark Plug x6 |
|---|---|
| Model Number | UF303 |
| Automotive Fit Type | Vehicle Specific Fit |
| Compatible with Vehicle Type | Truck |
This kit pairs six ignition coil packs with six double-iridium spark plugs to replace worn ignition components on compatible trucks and SUVs. It is typically used as a direct replacement when diagnosing misfires, rough idle, or reduced power caused by failed coils or fouled plugs. The double iridium plugs are billed for long life and consistent spark, while the coils include a ferrite noise suppressor and heat-resistant connectors to maintain reliable high-voltage transfer. In practice the set simplifies a multi-cylinder service by providing all six coils and plugs in one purchase, which helps restore smooth idle, better throttle response, and more consistent cold starts. Expect easier installation where fit is confirmed since the parts are listed as vehicle-specific interchange numbers, but do note the package does not include an instruction manual and compatibility must be verified against your vehicle before purchase. The seller also offers one year of product support if issues arise.
Best for: Buyers who prioritize dependable, long-lasting ignition components and want a single kit to refresh all six cylinders on a compatible truck or SUV during a maintenance or repair service.
Less Ideal for: Drivers who prefer dealer-sourced factory-brand parts or those who need proven fitment for multiple different vehicle models should consider alternatives or verify compatibility carefully.
- Complete kit includes six coil packs and six double-iridium spark plugs for a full-bank service
- Double iridium plugs are designed for long life and consistent spark delivery
- Coils feature ferrite noise suppression and thermoplastic connectors to resist heat-related failures
- Vehicle-specific interchange numbers simplify confirming fitment for targeted models
- No printed installation instructions included, so basic mechanical experience or a repair manual is helpful
Verdict: If you want a one-package replacement to restore ignition reliability across all six cylinders on supported trucks, this coil-and-plug kit delivers long-life plugs and heat-resistant coils built for dependable service.
6. ENA Set of 6 Ignition Coil Packs Compatible with 2.8L–4.2L Engines
| Terminal Quantity | 3 |
|---|---|
| Mount Type | Bolt On |
| Mounting Location | Front Vehicle |
| Voltage | 12V |
This ENA set supplies six plug-and-play ignition coils intended to replace factory coil packs on compatible GM-based 2.8L to 4.2L engines. Installation is straightforward since each coil uses a bolt-on mount and standard male connector; a basic hand tool set is enough for a DIY swap. In use the coils deliver consistent spark output at 12V, which helps eliminate misfires and restore engine smoothness when original coils have degraded. The kit covers multiple positions so you can service a full bank at once and avoid mixing old and new units. Practical benefits include restoring drivability and fuel economy without dealer visits and carrying a 12-month warranty for peace of mind. Limitations are that fitment is vehicle-specific, so you must confirm compatibility for your model year and engine, and these are aftermarket coils so they may differ slightly from factory units in materials and labeling. Buyers who expect exact factory-identical packaging or want dealer-branded parts should factor that in.
Best for: Buyers who want a cost-effective, DIY-friendly way to replace all ignition coils at once to fix misfires and restore smooth running on compatible GM 2.8L–4.2L engines, backed by a seller warranty and broad user adoption.
Less Ideal for: Drivers seeking dealer-branded or manufacturer-original coils or those unwilling to verify vehicle fitment before purchase should consider alternatives.
- Sold as a complete set of six so all coils can be replaced at once
- Bolt-on, plug-and-play design enables straightforward DIY installation
- Designed for consistent 12V spark output to reduce misfires and rough idle
- Covers common GM 2.8L–4.2L engine applications, simplifying part selection
- Aftermarket part that may differ in labeling and small details from factory coils
- Requires careful fitment verification to ensure compatibility with a specific vehicle year and engine
Verdict: A full six-pack of bolt-on, plug-and-play coils that lets you replace an entire bank quickly to stop misfires and restore smooth operation on compatible GM 2.8L–4.2L engines.
7. NPAUTO Ignition Coil Pack Kit, set of 6 (UF-303 C1395)
| Vehicle Service Type | Car |
|---|---|
| Connector Gender | male |
| Installation Type | Bolt-On |
| Manufacturer Part Number | KIT-10610 |
This NPAUTO kit supplies six ignition coils intended to replace failed units that cause misfires, rough idle, power loss, and reduced fuel economy. Designed as vehicle-specific bolt-on replacements, the pack includes gaskets and lists multiple interchange part numbers to match factory positions. Installers will use these coils when addressing cylinder-specific faults or performing a full-bank replacement to restore smooth running. The listing emphasizes quality-tested internals and housings aimed at durability, while the compact coil-on-plug design keeps installation straightforward with standard hand tools. Practical benefits include restoring drivability and avoiding piecemeal replacement when several coils are aging at once. Limitations are that this is an aftermarket unit rather than a factory-branded coil and buyers must verify exact fitment against the compatibility chart and OEM part references before ordering; performance and longevity depend on correct fit and installation conditions.
Best for: Buyers who prefer a cautious repair approach and want a full-bank replacement to reliably address misfires and restore everyday drivability on covered GM midsize trucks and SUVs.
Less Ideal for: People seeking factory-branded coils from the dealer or those who prefer to replace a single failing coil at minimal cost rather than the entire set.
- Complete set of six coils lets you replace the whole bank at once to eliminate intermittent misfires
- Designed as bolt-on replacements with included gaskets for a straightforward swap
- Lists multiple OEM interchange numbers to simplify cross-referencing and fit verification
- Quality-tested internals and housings intended to improve durability over unknown low-end parts
- Aftermarket product rather than factory-brand so exact longevity can vary by vehicle and driving conditions
- Requires careful compatibility checking against listed interchange numbers and vehicle fitment before purchase
Verdict: A complete, vehicle-specific six-coil kit that lets you replace the entire bank at once to reliably eliminate misfires and restore normal engine performance.
Choosing the Right 2004-2012 GMC Canyon Ignition Coil: Key Factors to Consider
Electrical Compatibility
An ignition coil must match the primary and secondary resistance and voltage output expected by the Canyon's ignition control module. Mismatched resistance can cause weak spark, misfires, or erratic ignition timing feedback to the engine control unit.
Confirming connector pin layout and terminal type matters because the coil must mate cleanly with the factory harness. Differences in coil driver strategy across engines in the 2004-2012 range mean you should check the specs for your exact engine and year before buying.
Fitment And Mounting
Proper mounting and boot length keep the high-voltage pathway short and mechanically secure. A coil that does not align with the spark plug or mounting studs can cause stress on the harness and lead to intermittent contact or premature failure.
Boot design and seating depth also affect spark transfer. Boots that are too short or too long can allow moisture ingress or create air gaps that increase the risk of arcing and misfire.
Thermal And Environmental Durability
The engine bay experiences wide temperature swings and exposure to oil, road salt, and moisture. Coils with high-quality potting compound, heat-resistant plastics, and sealed terminals resist cracking, water intrusion, and dielectric breakdown.
Look for coils specified to withstand elevated operating temperatures and resist moisture to reduce failure rates, especially if you drive in hot climates or on salted roads.
Build Quality And Materials
Higher-grade internal windings, solid cores, and consistent potting reduce the chance of breakdown under repetitive high-voltage stresses. Durable high-voltage boots and terminal plating reduce corrosion and arcing over time.
Attention to material quality often correlates with longer service life and fewer intermittent electrical issues, which is important for avoiding repeat repairs on the Canyon.
Testing And Diagnostics Support
Choose coils that allow straightforward bench or on-vehicle testing using common tools such as a multimeter and an ignition-scope if available. Clear specifications for primary and secondary resistance make troubleshooting easier.
Good documentation and labeled terminals let you isolate coil issues rapidly during diagnosis, reducing vehicle downtime and avoiding unnecessary replacements.
Warranty And Serviceability
A reasonable warranty signals manufacturer confidence in the component. While warranty terms vary, units with clear return or replacement policies reduce long-term ownership risk.
Also consider how easy it is to access and replace the coil on the 2004-2012 Canyon. Coils that are straightforward to service reduce labor time and the chance of installation errors.
Common Symptoms And Quick Checks
Misfires, rough idle, reduced power, and intermittent stalling are among the most common symptoms when a coil is failing in the 2004-2012 GMC Canyon. The check engine light may store codes related to misfires, cylinder-specific faults, or crankshaft position variations.
Simple quick checks include observing ignition behavior at idle and under load, listening for consistent firing sounds, and noting whether symptoms change with engine temperature. Visual inspection of boots and connectors for cracks, oil contamination, or corrosion often reveals obvious problems.
- Listen for irregular engine note at idle and under acceleration
- Inspect coil boots for cracks, brittleness, or oil contamination
- Check for corrosion or loose connector pins at the coil harness
How To Test An Ignition Coil
A basic test begins with a cold-engine resistance measurement using a multimeter. Check primary and secondary resistance against the specifications for the engine variant in your 2004-2012 Canyon. Large deviations indicate a failing coil.
On-vehicle testing under load is more revealing. Swap suspect coils between cylinders when practical to see whether the misfire follows the coil. Advanced diagnostics involve using an ignition-scope to view spark patterns or watching live misfire counters with a scan tool.
- Measure primary resistance across the low-voltage terminals
- Measure secondary resistance between the high-voltage output and low-voltage terminal
- Use cylinder swapping carefully to track down a failing coil
DIY Replacement Basics
Replacing an ignition coil on the 2004-2012 GMC Canyon is often straightforward with basic hand tools. Work on a cool engine, disconnect the battery, and label connectors if needed to avoid misrouting the harness. Remove the mounting bolts, disconnect the electrical connector, and pull the coil straight out to avoid damaging the boot.
When installing, ensure the boot seats fully on the spark plug and the connector snaps firmly. Recheck all mounting hardware and clear any stored engine codes after replacement. If you are comfortable with basic mechanical tasks, replacing coils yourself can be an effective way to restore drivability.
- Always disconnect battery before working on ignition circuits
- Avoid prying on boots; pull coils straight to prevent boot damage
- Clear codes and perform a test drive to verify repair
Preventing Future Failures
Keep the engine bay clean and address oil leaks promptly since oil and contaminants accelerate coil and boot degradation. Periodic visual checks during routine maintenance let you catch worn boots or cracked connectors before they cause misfires.
Use dielectric grease sparingly only on boot interiors where recommended to improve moisture resistance. Tighten mounting hardware to prevent vibration-related failures but avoid over-torquing plastic components that can crack.
- Inspect coils and boots during routine tune-ups
- Fix valve cover or intake leaks to prevent oil contamination
- Use correct torque values for mounting bolts to reduce vibration wear
Interpreting Diagnostic Trouble Codes
Codes for cylinder misfires or ignition control errors point you toward cylinder-specific coil issues. The 2004-2012 GMC Canyon will often log a specific cylinder number that allows targeted testing and replacement. Remember that a misfire code can also stem from spark plugs, fuel delivery, or compression problems, so treat codes as a starting point.
Cross-check live data such as misfire counts and short-term fuel trims while swapping coils or performing tests. If the misfire follows the coil when swapped, you have a clear indication the coil is at fault.
- Use stored cylinder-specific codes to guide your diagnosis
- Compare live misfire counts before and after swapping coils
- Rule out spark plugs and fuel issues before concluding coil failure
Still looking for the perfect fit?
Select your GMC Canyon configuration to see the most relevant Ignition Coils recommendations
How We Chose the Best 2004-2012 GMC Canyon Ignition Coil
We focused on components that directly affect ignition performance and long-term reliability for 2004-2012 GMC Canyon owners. Primary evaluation criteria included electrical compatibility with the factory ignition system, thermal and moisture resistance of the coil housing and insulation, and correctness of the electrical connectors and mounting points to ensure straightforward fitment. Secondary criteria included build quality of the internal windings and cores, tolerance to high-voltage stress cycles, and materials used for high-voltage boots and seals that reduce arcing and flashover.We also considered longevity indicators such as corrosion-resistant terminals and robust molding around the primary and secondary windings. Units that showed weak connector retention, ambiguous fitment information, or nonstandard voltage outputs were excluded. We filtered out items that required modification to install or that did not match recommended resistance and output specifications for the listed engines. The result is a curated selection emphasizing correct fit, electrical reliability, and resistance to the heat and vibration typical of the Canyon's engine bay.
Our full evaluation process is outlined in our review methodology.
FAQ
What are the usual symptoms of a failing ignition coil on a GMC Canyon?
You will often notice rough idle, reduced power under acceleration, engine misfires, and a check engine light with cylinder-specific misfire codes. Symptoms can be intermittent and may worsen as the engine heats up.
Can I test an ignition coil at home with a multimeter?
Yes, a multimeter allows basic primary and secondary resistance checks. Compare measured values to the specifications for your engine. More advanced on-vehicle tests or swapping coils between cylinders provide stronger confirmation.
Is replacing an ignition coil a DIY job on the 2004-2012 Canyon?
Often it is, as coils are typically accessible with basic tools. Take safety precautions, work on a cool engine, and label connectors if wiring is cramped. If diagnosis is unclear or access is limited, professional help may be warranted.
How do I know if a misfire code means the coil or the spark plug is bad?
Swap the coil with another cylinder and see if the misfire follows the coil. If the misfire moves, the coil is likely the issue. If it stays on the same cylinder, inspect the spark plug, fuel injector, and compression for that cylinder.
Will a bad ignition coil damage the catalytic converter on my Canyon?
Prolonged misfires that allow raw fuel into the exhaust can overheat and damage the catalytic converter. Fix misfires promptly to avoid additional downstream component damage.
How long do ignition coils usually last in the Canyon?
Coil life varies with operating conditions, but many last tens of thousands of miles. Heat, oil contamination, and repeated voltage stress shorten service life, so check coils sooner if your vehicle experiences those conditions.
Final Verdict
When replacing ignition coils on a 2004-2012 GMC Canyon, prioritize correct electrical compatibility and secure fitment. Focus on coils with robust thermal sealing and quality boots to reduce moisture intrusion and arcing, and verify resistance specs to make sure the unit matches your engine's ignition control requirements.Balance the convenience of an easy DIY replacement against the value of thoroughly diagnosing the cause of misfires. Addressing ignition coils early prevents secondary damage and restores drivability, so choose units that match factory specs and are built to withstand the Canyon's engine-bay conditions.
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- Check out all GMC Canyon parts & accessories
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