Parts for your 2013 Subaru Legacy-Ignition coils

Ignition Coils on the 2013 Subaru Legacy: What You Need to Know

The 2013 Subaru Legacy definitely uses ignition coils as a crucial part of its ignition system. Ignition coils play a big role in making sure the engine runs smoothly and efficiently. For this model, these components are essential because without them, the car wouldn't be able to ignite the fuel-air mixture in the engine cylinders properly.

So, what exactly are ignition coils? Simply put, the ignition coil is a type of transformer that converts the 12 volts from the car's battery up to thousands of volts. This high voltage is then sent to the spark plugs, creating a spark that ignites the fuel inside the engine. Without this spark, the engine won't start or keep running. The 2013 Subaru Legacy uses a multi-coil setup, usually one coil per cylinder, which is more efficient and reliable compared with older distributor-style ignition systems.

Ignition coils are mounted directly on top of the spark plugs on many Subaru engines, including the 2013 Legacy's boxer engine. This setup is called coil-on-plug, and it helps deliver a more precise and consistent spark, improving fuel economy, emissions, and overall performance.

Over time, ignition coils can deteriorate or fail due to heat, vibration, or wear and tear. If an ignition coil goes faulty, you may notice symptoms like rough idling, misfiring, poor acceleration, increased fuel consumption, or the check engine light coming on. These signs mean it's time to inspect or replace the coils to keep the car running at its best.

When servicing the ignition coils on a 2013 Subaru Legacy, it's important to handle them carefully. They contain delicate internal components, and improper installation or rough handling can cause damage. Often, mechanics will recommend checking ignition coils along with spark plugs during regular maintenance intervals, usually every 60,000 to 100,000 kilometres, depending on driving habits and conditions.

Replacing ignition coils is generally straightforward but should be done one at a time, especially if you're diagnosing engine issues. This way, you can identify which coil is faulty without replacing all of them unnecessarily. Genuine Subaru ignition coils or high-quality aftermarket alternatives are recommended to ensure reliability and proper fitment. Cheap or incompatible coils may cause new problems and a noticeable drop in engine performance.

It pays to keep ignition coils in good shape because any ignition system problems can lead to engine misfires that can damage the catalytic converter or other engine components, leading to more expensive repairs down the track. Plus, faulty coils can reduce power and fuel efficiency, making your drive less enjoyable and more costly.

During routine servicing, it's good to ask your mechanic to perform an ignition coil test if the check engine light is active or if you feel the engine struggling. They will usually use a scan tool to check for misfire codes or test coil resistance to identify weak coils. If any are failing, replacing them promptly often restores smooth engine operation immediately.

Maintaining the ignition coils on the 2013 Subaru Legacy also means keeping the surrounding area clean and dry. Moisture or oil contamination can cause coil boots and connections to degrade or short out, causing ignition problems. A quick visual inspection during servicing can reveal cracks, corrosion, or signs of overheating. These issues should be addressed without delay to avoid engine performance issues.

While ignition coils are quite durable, they aren't exactly 'fit and forget'. Over time, they will eventually need replacement to keep your Subaru Legacy running like a champ. Being proactive about ignition coil health means fewer unexpected breakdowns, better fuel economy, and smoother overall driving.

So, if you own a 2013 Subaru Legacy, consider ignition coils as one of the key components that need a bit of love during servicing. Whether you're bringing it in for routine maintenance or troubleshooting performance issues, asking about your ignition coils is a smart move. It's an investment in keeping your car running strong for many kilometres to come.