Do Subarus have coil packs?
Subaru vehicles are known for their reliability, unique boxer engines, and all-wheel-drive systems. However, when it comes to ignition systems, many Subaru owners and enthusiasts often wonder: do Subarus have coil packs? In this article, we’ll explore what coil packs are, how they function, and whether they are a feature in Subaru vehicles.
What Are Coil Packs?
Coil packs are an essential component of modern ignition systems. They replace the traditional distributor and ignition coil setup found in older vehicles. A coil pack is essentially a group of ignition coils that work together to generate the high voltage needed to ignite the air-fuel mixture in the engine's cylinders. This system improves efficiency, reduces emissions, and enhances reliability.
Do Subarus Use Coil Packs?
Yes, most modern Subaru vehicles are equipped with coil packs. Subaru began transitioning to coil pack systems in the late 1990s and early 2000s as part of their move toward more advanced and efficient ignition systems. The exact configuration of the coil packs can vary depending on the model and year of the Subaru.
For example:
- Many Subaru models, such as the Impreza, Outback, and Forester, use a coil-on-plug (COP) system. In this setup, each cylinder has its own dedicated ignition coil mounted directly on top of the spark plug.
- Older Subaru models may use a single coil pack that distributes voltage to multiple cylinders via spark plug wires.
Why Are Coil Packs Important?
Coil packs play a critical role in ensuring your Subaru runs smoothly and efficiently. Here are some key benefits of coil packs:
- Improved Performance: Coil packs deliver a more consistent and powerful spark, which leads to better engine performance and fuel efficiency.
- Reduced Maintenance: Unlike traditional distributor systems, coil packs have fewer moving parts, making them more durable and less prone to wear and tear.
- Lower Emissions: By providing a precise spark, coil packs help reduce unburned fuel and harmful emissions.
Signs of a Failing Coil Pack
While coil packs are generally reliable, they can fail over time. Here are some common symptoms of a failing coil pack in a Subaru:
- Engine misfires or rough idling
- Reduced fuel efficiency
- Difficulty starting the engine
- Illuminated check engine light
- Loss of power during acceleration
If you notice any of these symptoms, it’s important to have your vehicle inspected by a professional mechanic. At Kevin’s Autos, we specialize in diagnosing and repairing ignition system issues, including coil pack replacements.
Conclusion
In summary, most modern Subaru vehicles are equipped with coil packs, which are a vital part of their ignition systems. These components enhance performance, reduce maintenance needs, and contribute to lower emissions. If you suspect an issue with your Subaru’s coil packs, don’t hesitate to reach out to a trusted auto repair shop like Kevin’s Autos for expert assistance.
Frequently Asked Questions
How much does it cost to replace a coil pack?
Parts can range from about $35 to more than $300 for one ignition coil, according to the vehicle you drive. Labor costs for replacing the part are usually less than $100.
Do all vehicles have coil packs?
All except diesels and older gasoline engines. Most modern cars have one ignition coil per cylinder. Typically, the coil is installed right over the spark plug. This setup is called coil-on-plug.
How long do Subaru coil packs last?
In general, however, ignition coils can last anywhere between 120,000 to 150,000 miles or five to seven years. It's a good idea to check on them before then, so your mechanic can identify any issues before they negatively affect your vehicle.
How much to replace a Subaru ignition coil?
It can cost anywhere between $80 and $300 to replace an ignition coil. The exact cost depends on several factors, including: Your Subaru model. Where you get the job done: at a shop by a mechanic or at home by yourself.
What are the signs of a weak coil pack?
7 Signs of a Faulty Ignition Coil
- Blinking Check Engine Light.
- Coughing, Sputtering Engine.
- Repeatedly Stalling Engine.
- Slower Acceleration.
- Dropping Gas Mileage.
- Backfiring From the Tailpipe.
- Your Chevy Dealer Finds a Flaw.
What are the symptoms of a bad coil pack?
7 Signs of a Faulty Ignition Coil
- Blinking Check Engine Light.
- Coughing, Sputtering Engine.
- Repeatedly Stalling Engine.
- Slower Acceleration.
- Dropping Gas Mileage.
- Backfiring From the Tailpipe.
- Your Chevy Dealer Finds a Flaw.
How do I know if my Subaru engine is misfiring?
Typically, a misfiring engine will cause the car to vibrate or shake, especially at idle. You might also notice a decrease in power, acceleration, and fuel efficiency. In many modern Subarus, the onboard computer will detect a misfire, illuminating the check engine light on your dashboard.
How do I know if my car needs a new coil pack?
If your car makes spluttering and coughing sounds, blame a bad ignition coil. The sounds are from a cylinder that's not firing correctly or not at all during the ignition process. If you hear loud banging noises, it's from exploding unused gas in the combustion cylinders.
What are the symptoms of a failing ignition coil?
8 Signs Your Vehicle Has a Faulty Ignition Coil in Silver Spring,...
- The Check Engine Light Is On.
- Your Car Feels Slow.
- Your Car Is Heavy on Gas.
- Your Car's Engine Misfires.
- Your Car Backfires.
- You Struggle with Starting and Stalling Issues.
- You Hear Sputters and Coughs.
- Your Car Shakes and Jerks.
How do I know if my Subaru coil pack is bad?
Find the spark plug wire terminals and then plug your multimeter in two of them. Make sure that both terminals are pointing directly opposite of each other. The reading should be about 12,800 ohms, plus or minus 15%. If the reading is off, then the coil pack is bad and it needs to be replaced.
