Subaru auto ignition coil

Types of Subaru auto ignition coil

A Subaru auto ignition coil is an electrical component that transforms low battery voltage into high voltage. This high-voltage electric current is sent to the spark plugs, igniting the air-fuel mixture in the engine's cylinders. Without the ignition coils, the internal combustion engine wouldn't work. Regardless of its small size, the ignition coil is one of the key components of the ignition system. It uses very little power from the car battery to generate thousands of volts. The coils are one of the most dependable components of the car, requiring very little maintenance. However, like any other component, coils can wear out or develop faults over time.

There are several types of Subaru auto ignition coils, including:

• Subaru coil on plug: The coil-on-plug ignition system has a small ignition coil mounted directly on top of each spark plug. This system provides a more direct electrical path to the spark plug, which improves spark timing and plug firing. As a result, the engine's performance, fuel efficiency, and emissions are greatly improved. It's no surprise that the coil-on-plug ignition system has become standard in many Subaru models. In older models, this ignition system may be retrofitted with great success.
• Subaru twin spark ignition coil: The twin-spark ignition coil is a two-coil system. Each coil has two high-voltage terminals that fire two spark plugs simultaneously. This system ensures a more complete combustion of the air-fuel mixture, resulting in less emissions, better engine performance, and improved fuel efficiency. The twin-spark ignition system was used in some older Subaru models, such as the Subaru 1000, until the coil-on-plug system became standard.
• Subaru distributor ignition coil: The distributor ignition coil is a traditional and common ignition system in older vehicles. It uses a distributor to route high-voltage current from the ignition coil to the spark plugs. In older Subaru models, the distributor ignition system is reliable and effective. However, the system is prone to wear and requires regular maintenance. The ignition system may be retrofitted in newer Subaru models.
• Subaru high-performance ignition coils: High-performance ignition coils are designed to create a more powerful spark. This ensures a more complete burn of the air-fuel mixture. High-performance ignition coils are important upgrades for engines with modifications, such as increased airflow or fuel delivery. Coil-on-plug and twin-spark ignition systems can be combined with high-performance ignition coils to improve engine performance significantly.

Specifications and Maintenance of Subaru Auto Ignition Coil

Subaru ignition coils are vital components of the ignition system. They use a 12-volt battery to power the system and generate the high voltage required to ignite the air-fuel mixture in the engine's combustion chamber. Several factors have to be considered when choosing the right ignition coil for a Subaru vehicle, including make, model, and year. Here are a few specifications of Subaru auto ignition coils:

• Voltage: As mentioned earlier, ignition coils use a 12-volt battery to power the ignition system. This voltage allows the coils to create a spark plug's high voltage.
• Primary Resistance: The primary resistance of ignition coils ranges from 0.4 to 1.5 ohms. However, the exact resistance may be different depending on the specific coil model and engine configuration.
• Secondary Resistance: The secondary resistance of Subaru ignition coils ranges from 6,500 to 15,000 ohms. Again, the exact resistance may vary based on the specific coil model and engine configuration.
• Coil Configuration: Each engine has its specified coil configuration. Whether it is a coil-on-plug (COP) or distributor-based ignition system, it has to be specified.
• Firing Order: The ignition coils are designed to be in sync with the engine's firing order. This is important for proper engine operation and ignition timing.

Subaru auto ignition coils don't require much to maintain. However, it is important to follow a few guidelines to ensure the coils function properly and have a long lifespan. Here is a general guide on how to maintain Subaru auto ignition coils:

• Subaru auto ignition coils are often used in combination with other components of the ignition system. It is important to inspect the spark plugs, ignition wires, and other components regularly to ensure they are working properly.
• Coil-on-plug (COP) ignition coils are designed to sit directly on the spark plugs. This means they can be exposed to heat generated during engine operation. Excessive heat can cause damage to the coils over time. To prevent this, ensure the engine is well-maintained. Also, make sure the ignition coils are not located near other heat-generating components.
• Oil and carbon deposits can build up on the ignition coils and cause them to misfire or fail to work properly. To prevent this, clean the coils periodically, especially when the engine is due for a maintenance service.
• Wear and tear are inevitable. Over time, the internal components of the ignition coils may start to deteriorate or become damaged. This can be caused by factors such as age, usage, and environmental conditions. Coils that are used more frequently are more prone to wear and damage.
• Ensure the ignition coils are properly connected to the engine's electrical system. Loose or corroded connections can cause the coils to malfunction or provide inconsistent output voltage.

How to choose Subaru auto ignition coils

When choosing Subaro ignition coils for resale, prioritize quality, compatibility, and customer needs. Consider these factors:

• Quality

  Stock ignition coils from well-known companies are of high quality. They are perfect for Subaru vehicles since they are made with care.

• Compatibility

  Subaru vehicles have different models and many years of making them. Each model and year needs a different ignition coil. So, when choosing, be sure to pick the one that matches the model and year of the Subaru car.

• Performance and reliability

  Performance and reliability are key when choosing ignition coils. The ignition coils chosen should have no trouble making the car run smoother and better. And, of course, they must be reliable and last a long time.

• Price

  Subaru ignition coils come in many prices. It is good to pick the ones that give the best value for the money. Don't forget to compare the features and quality of each one.

• Warranty

  Choosing ignition coils with a good warranty is smart. The warranty shows that the maker stands behind the quality of the coil. If anything goes wrong, the warranty can help fix or replace it.

• Brand reputation

  Focusing on the brand's status is another way to choose. Brands with a good standing will likely give a good coil. Brands with a bad standing may give trouble with the coil.

• Customer reviews

  Reading what other buyers think is a good way to pick the right coil. Other buyers' reviews can tell how the coil works and how the quality is.

• Coil type

  Subaru cars need different coils, like the 'Coil-on-Plug' and 'Distributor-based' types. The 'Coil-on-Plug' type is better for newer cars, while the 'Distributor-based' type is for older models. Be sure to choose the correct type based on the model and year of the Subaru car.

• Heat and vibration resistance

  Choosing coils that can handle heat and shaking is smart. The coils need to be strong so they won't be damaged by the heat or shaking in the engine bay.

• Emissions compliance

  Picking coils that follow the rules for less pollution is very important. These coils help the car to be good for the air and the place.

How to DIY and replace Subaru auto ignition coil

Subaru ignition coil replacement is a straightforward process that can be done at home. Only basic mechanical skills and knowledge are required. Before starting, it is important to have the right tools and materials at hand. These include a new ignition coil, a 10mm socket, ratchet, and extension, a 14mm socket, and a torque wrench. It is also advisable to have a spark plug gap tool.

Subaru owners can follow the steps below to replace the ignition coil on their engines. The process is pretty much the same, regardless of the engine model.

• 1. Access the ignition coils

  First, open the hood and secure it. Then, remove the plastic engine cover. This will provide access to the ignition coils. The engine cover is fastened with a few 10mm bolts. Use a 10mm socket and ratchet to remove the bolts and lift the cover off.

• 2. Remove old ignition coils

  The ignition coils are located on top of the spark plugs. They are secured with a single 10mm bolt each. Use a 10mm socket and ratchet to remove the bolts and lift the coils. It is important to do this gently to avoid damaging the coils.

• 3. Check the spark plugs

  Now that the ignition coils have been removed, it is a good time to check the spark plugs. Use a 14mm socket and ratchet to remove the spark plugs. Inspect them for signs of wear and tear, such as cracks or deposits. If they are worn out, consider replacing them with new ones.

• 4. Install new ignition coils

  Take the new ignition coils and line them up with the spark plugs. The coils should fit snugly onto the spark plugs. Secure each coil with its 10mm bolt. Use a 10mm socket and ratchet to tighten the bolts. Be careful not to overtighten the bolts to avoid damaging the coils.

• 5. Reassemble everything

  Once all the ignition coils have been replaced, reassemble the engine cover. Use a 10mm socket and ratchet to put back the bolts and secure the cover. Ensure that all the bolts are tightened properly to prevent any loose parts. Close the hood and start the engine to ensure that everything is working properly.

Q and A

Q1. How does one know that the ignition coil is bad?

A1. There are several signs and symptoms that can be noticed when the ignition coil is bad. When the subaru auto ignition coil is bad, the engine misfires, vibrates, or shakes. The vehicle's check engine light comes on, and it runs on a lean air-fuel mixture. Other signs include a hard start or no-start situation, lack of power, poor acceleration, and backfiring. When users experience any of these signs, they should have the ignition coil checked.

Q2. Can a bad ignition coil cause damage to the engine?

A2. No! A bad ignition coil cannot damage the engine. However, it can cause other serious issues if not fixed on time. When the ignition coil is bad, it causes the engine to misfire. This can lead to a lot of unburned fuel entering the exhaust system. If this continues for a long period of time, it can damage the catalytic converter.

Q3. How long does it take to replace an ignition coil?

A3. Replacing an ignition coil is a very simple and quick process. It can be done within 30 minutes to an hour, depending on the vehicle model. Some vehicle models have their ignition coils placed deeper inside the engine bay, which makes it harder to reach.

Q4. Can anyone replace the ignition coil by themselves?

A4. Yes! Ignition coil replacement is a DIY-friendly task. Anyone can replace it by following the right steps. First, remove the negative terminal of the battery. Then, remove the ignition coil, which is often located on top of the engine's air-fuel intake. Clean the area and the connecting spark plug cables. Install the new ignition coil and reconnect the batteries.

Q5: What is the warranty period for a Subaru auto ignition coil?

A5: The warranty period for an auto ignition coil varies. Most manufacturers offer a warranty period of 6 to 12 months. Some also offer a 1-year warranty, depending on the terms and conditions.