Chevrolet Suburban 2500 Ignition Coil Replacement Guide (2000-2013)
Learn how to diagnose a bad ignition coil and choose the right replacement for your Suburban 2500's V8 engine.
- Visually confirm your coil style (round for 2000-2006, square for 2007-2013) before buying.
- For reliability, choose OEM-grade aftermarket brands like Delphi, NGK, or Bosch over cheap, unbranded sets.
- If one coil fails on a high-mileage engine, consider replacing all eight as a set to prevent future issues.
- When diagnosing a misfire on the passenger side, check for coolant leaks from the heater hoses above the coils.
Is Your Suburban 2500's Ignition Coil Failing?
A failing ignition coil can cause noticeable engine problems. Because your truck has eight coils, the failure of just one can disrupt the engine's smooth operation. The most common sign is a blinking or solid Check Engine Light on your dashboard. You will likely also experience a rough idle, engine shaking, or a sputtering sound. Other symptoms 🎬 Watch this video to see how to diagnose a bad coil. include a clear loss of power when accelerating, worse gas mileage, and difficulty starting the engine. In some cases, you might smell raw gasoline from the exhaust or hear a popping noise, which is unburned fuel igniting in the exhaust system.
Critical: Identify Your Coil Style Before Ordering
The 2000-2013 model years span two different generations of the Suburban, which used two different styles of ignition coils. They are not interchangeable. Ordering the wrong style is the most common mistake.
- 2000-2006 (GMT800): These trucks typically use a round or "Delphi" style coil, often identified by part numbers like D581 🎬 See this walkthrough for replacing coils on 2000-2006 models. or UF271.
- 2007-2013 (GMT900): These trucks use a square or "LS Truck" style coil with an integrated heat sink. Common part 🎬 Watch: Step-by-step coil replacement for 2007-2013 Suburban trucks. numbers include D585 or UF413.
Always visually inspect your current coils before purchasing replacements to ensure you get the correct part for your specific year.
Choosing the Right Aftermarket Ignition Coil
When replacing ignition coils, you have a wide range of options. While factory coils are known to be very reliable, high-quality aftermarket parts can offer excellent performance and value.
Tier 1: OEM & Premium Aftermarket
These brands are known for manufacturing original equipment parts or meeting and exceeding OEM standards. They are the most reliable choice for longevity and performance.
- Delphi: Delphi was a very common original parts supplier for GM, and their coils are often identical to the ACDelco parts sold at dealerships.
- ACDelco: The official GM parts brand. Choosing ACDelco ensures OEM performance.
- NGK, Bosch, Hitachi, Denso: These are all highly respected Japanese and German brands known for top-tier ignition components and are trusted by professional mechanics.
Tier 2: Quality Aftermarket
These brands offer a good balance of quality and price. They are a solid choice for daily drivers and are often warrantied for peace of mind.
- Standard Motor Products (SMP): A long-standing aftermarket manufacturer with a reputation for producing reliable parts.
- Spectra Premium: Offers a range of quality replacement parts that meet OEM specifications.
Tier 3: Economy Brands
While the low price of budget coil sets on Amazon or eBay can be tempting, they are known for inconsistent quality and high failure rates. While some may work fine, it's a gamble. If you are on a tight budget, it is often better to replace only the single failed coil with a quality brand than to replace all eight with parts from an unknown manufacturer.
Pro Tip for Owners
If you have a misfire on the rear passenger-side cylinder (Cylinder 8), check for coolant leaks before replacing the coil. The heater core hoses run directly above this coil, and a slow leak can drip onto the coil, causing it to fail prematurely. Fixing the leak is necessary to prevent repeat failures.
Cost of Replacing Ignition Coils on a 2000-2013 Suburban 2500
| Part Type | Estimated Cost (Set of 8) |
|---|---|
| New OEM / ACDelco | $400 - $650 |
| New Aftermarket (Premium) | $250 - $450 |
| New Aftermarket (Value/Economy) | $80 - $200 |
| Shop Labor | $100 - $250 |
Frequently Asked Questions
Should I replace all 8 ignition coils at once?
If your truck has over 100,000 miles, it is a good preventative measure to replace all eight coils and the spark plugs at the same time. Coils are wear items, and when one fails due to age, others are likely to fail soon after. If the failure is due to an external factor (like a coolant leak on one coil), replacing only the single damaged coil is acceptable.
Is replacing an ignition coil a difficult job?
No, this is a very DIY-friendly job. The coils are easily accessible on top of the valve covers. The only tools typically needed are a 10mm socket and a ratchet. The entire job for all eight coils can usually be done in 1 to 1.5 hours.
What are the OBD codes for a bad ignition coil?
A general misfire code is P0300. A cylinder-specific misfire code will be P0301 through P0308 (e.g., P0302 is Cylinder 2 Misfire). You may also see codes P0351 through P0358, which point specifically to a fault in the ignition coil's circuit for that cylinder.
Are there any recalls for Suburban 2500 ignition coils?
No specific recalls were found for ignition *coils* on the 2000-2013 Chevrolet Suburban 2500. While GM has issued recalls for ignition *switches* on some vehicles from this era, those do not apply to the coils themselves.
Helpful Videos
Technical Specifications
OEM Part Numbers: 10457730 12573190 12558693 19005218 D581 D585 D514A UF271 UF413
This vehicle uses a coil-near-plug system with eight individual coils. There are two distinct designs depending on the model year: a round body coil for 2000-2006 models and a square body coil with a heat sink for 2007-2013 models.
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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 Suburban 2500:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Suburban 2500's Ignition Coil Failing?
- Critical: Identify Your Coil Style Before Ordering
- Choosing the Right Aftermarket Ignition Coil
- Tier 1: OEM & Premium Aftermarket
- Tier 2: Quality Aftermarket
- Tier 3: Economy Brands
- Pro Tip for Owners
- Cost of Replacing Ignition Coils on a 2000-2013 Suburban 2500
- Frequently Asked Questions
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