A Deep Dive into the 1991-1999 Dodge Stealth Ignition Coil System
Misfires and rough idling on your Stealth could point to a failing ignition coil; here's how to choose the right replacement.
- Your Stealth has three identical ignition coils in a waste spark system; a failure in one coil affects two cylinders.
- Symptoms include rough idle, misfiring, loss of power, and a check engine light.
- It is strongly recommended to replace all three coils at once, along with spark plugs and wires.
- Top-tier aftermarket brands like NGK and Delphi offer excellent quality and reliability for this vehicle.
Is Your Stealth Running Rough? It Could Be the Ignition Coils
A failing ignition coil can cause a range of problems, from annoying to severe. Because each coil fires two cylinders, a single bad coil will have a noticeable impact on your V6 engine's performance. If you experience a rough idle, hesitation when you accelerate, or a check engine light, a weak or dead ignition coil is a likely suspect.
Common Failure Symptoms
- Engine Misfires: The car may shudder, sputter, or jerk, especially while idling or accelerating.
- Check Engine Light: The computer will detect a misfire and trigger a warning light.
- Loss of Power: Your Stealth will feel sluggish and slow to accelerate.
- Poor Fuel Economy: When a cylinder isn't firing correctly, unburnt fuel is wasted, causing your gas mileage to drop.
- Engine Stalling: In severe cases, especially when multiple coils are weak, the engine may stall at stops.
- Difficulty Starting: A weak spark makes it harder for the engine to start, especially when cold.
Choosing the Right Aftermarket Ignition Coil
When replacing ignition coils on your Stealth, you have several options. While original Mitsubishi (OEM) coils were high quality, aftermarket technology has caught up, and many brands offer excellent performance. The three coils on your Stealth are identical, so you can order three of the same part. It is highly recommended to replace all three coils at the same time, especially if they are original, as they have been exposed to the same heat and wear for decades.
Brand Quality Tiers
Not all aftermarket parts are created equal. Here’s a breakdown of the brands available to help you make an informed choice. Forum discussions and general mechanic consensus often point to sticking with well-known names for ignition components.
- Top Tier (OEM Quality or Better): Brands in this category are known for excellent reliability and performance, often matching or exceeding original specs. They are a solid choice for enthusiasts and daily drivers alike.
- NGK: A highly respected name in ignition systems, often considered an OEM-equivalent for many Japanese vehicles. A top choice for reliability.
- Delphi: A major OEM supplier with a strong reputation for quality electronics and ignition components.
- Standard Ignition (SMP): A long-standing, trusted brand in the aftermarket known for producing quality replacement parts.
- Mid-Grade (Reliable Replacements): These brands offer a good balance of price and quality. They are a dependable choice for most repairs.
- Spectra: A known aftermarket brand that provides reliable, direct-fit replacement parts.
- Walker Products: A well-established company that produces a wide range of engine management components.
- Economy (Budget-Friendly): These brands are for the budget-conscious owner. While they will get your car running, their long-term durability may not match the higher-tiered brands. They can be a viable option for a car that is not driven daily.
- DriveWire
- Global Parts (GPD)
- Prenco
Pro Tip: While you are replacing the ignition coils, it is the perfect time to also install new spark plugs and spark plug wires. This ensures your entire ignition system is refreshed, providing optimal performance and preventing future misfires.
🎬 See how to replace your coils, spark plugs, and wires together.Cost to Replace Dodge Stealth Ignition Coils
The cost can vary depending on the brands you choose and whether you do the work yourself. The job is DIY-friendly for those with some mechanical experience, though accessing the coils requires removing some intake piping.
🎬 Watch this step-by-step guide on replacing your Stealth's coil packs.| Part Type | Estimated Cost (Set of 3) |
|---|---|
| New Aftermarket (Economy) | $45 - $90 |
| New Aftermarket (Mid-Grade/Top Tier) | $90 - $155 |
| Shop Labor | $100 - $200 |
Frequently Asked Questions
How many ignition coils does my 1991-1996 Dodge Stealth have?
All DOHC V6 models from this period have three ignition coils. They are mounted together on a single bracket located on the engine.
Are the three ignition coils the same?
Yes, the three individual coils are identical and interchangeable. The OEM part number for the entire assembly with the bracket was MD152648, but aftermarket coils are sold individually. You can buy three of the same part number for a complete replacement.
Should I replace all three coils at once?
Yes, it is highly recommended. If one coil has failed due to age and heat, the others are likely not far behind. Replacing all three at the same time is preventative maintenance that can save you from another breakdown in the near future.
Are OEM coils better than aftermarket for my Stealth?
Original Mitsubishi (Diamond Electric) coils were very good, but they are over 25 years old now. High-quality aftermarket brands like NGK or Delphi are excellent modern replacements that often meet or exceed original specifications. Choosing a reputable aftermarket brand is a safe and cost-effective choice.
Are there any recalls for the ignition coils?
No, there have been no specific recalls issued by the NHTSA for ignition coil failure on the 1991-1996 Dodge Stealth.
Helpful Videos
Technical Specifications
OEM Part Numbers: MD152648
This vehicle uses a distributorless, waste-spark ignition system with three, two-terminal coils. The original coils were made by Diamond Electric, model F-608.
We Have This Part in Stock
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.
- Dodge Stealth: