Parts for your 2017 Subaru Outback-Ignition coils

Understanding Ignition Coils in the 2017 Subaru Outback

The 2017 Subaru Outback is well-known for its reliability, rugged performance, and smooth driving experience. One of the essential components that help keep the engine running efficiently is the ignition coil. For any vehicle, the ignition coil is a vital part of the ignition system, and the 2017 Subaru Outback is no exception. The car relies on ignition coils to power the engine's spark plugs, which ignite the air-fuel mixture inside each cylinder. Without them, the engine simply would not start or run properly.

So what exactly do ignition coils do? At its core, an ignition coil is responsible for converting the 12-volt power supplied by the battery into the much higher voltage needed to create a spark at the spark plugs. This spark is what ignites the fuel inside the combustion chamber, powering the pistons and ultimately moving the vehicle. In the 2017 Outback, the ignition system utilises individual ignition coils mounted directly on top of each spark plug, a setup often referred to as coil-on-plug. This design improves ignition efficiency and helps reduce misfires caused by worn spark plug wires or faulty distributor caps found in older vehicles.

Each ignition coil in the Subaru Outback acts like a transformer. It takes the low voltage and steps it up to between 20,000 and 30,000 volts, enough to jump the gap at the spark plug electrode and create a strong spark. The strength and timing of the spark are crucial for optimal engine performance, fuel economy, and emission control. If an ignition coil goes faulty, it can cause rough idling, reduced power, increased fuel consumption, or even cause the engine to stall. The vehicle's onboard diagnostics system will usually detect a misfire and trigger the check engine light, prompting a service visit.

Maintenance and replacement of ignition coils in the 2017 Subaru Outback is pretty straightforward. While the coils themselves are designed to last a long time, usually over 100,000 kilometres under normal driving conditions, it's important to keep an eye on their condition. Heat, vibration, and general wear can cause ignition coils to degrade over time. Regular engine diagnostics scans during routine servicing can help spot early signs of coil failure. When it's time to replace them, it's a good idea to change all ignition coils at once rather than one at a time to keep the ignition system balanced and operating smoothly.

Replacing ignition coils is a relatively simple job on the 2017 Outback, especially since the coil-on-plug design means each coil is easily accessible. Unlike older systems that used a central coil with leads running to each spark plug, this setup eliminates many potential points of failure like cracked spark plug wires. During a coil replacement, it is important to check spark plugs as well because worn plugs can put extra strain on the new coils, leading to premature failure.

One handy tip for Subaru Outback owners is to always use OEM or high-quality aftermarket ignition coils. These ensure compatibility and reliability. Cheap or lower-quality coils might save a few dollars upfront but could lead to performance issues or even damage to the engine management system over time. Plus, poor ignition performance can be frustrating with symptoms like jerky acceleration or difficulty starting on cold mornings.

Routine servicing of the ignition system, including coil inspection, is usually part of a comprehensive Subaru maintenance schedule. Mechanics often recommend checking ignition coils from around 80,000 kilometres onwards or earlier if the engine shows any signs of misfiring or hesitation. Most owners notice a difference after replacing faulty coils as the engine runs smoother, fuel efficiency improves, and the check engine light stays off.

For anyone running a 2017 Subaru Outback, being aware of the role ignition coils play can help keep the vehicle running at its best. While they might seem like small parts, ignition coils are crucial for ignition system performance and overall engine health. When treated with a bit of attention, they will serve the Outback well for many thousands of kilometres. Keeping the ignition coils in good nick means that all the journeys, whether out on dusty trails or the daily commute, will happen without a hiccup.

So whether you're servicing the car yourself or chatting with your mechanic, don't overlook the ignition coils. They are fundamental to keeping the Subaru Outback's boxer engine firing reliably. After all, a smooth engine start and steady power delivery make every drive more enjoyable and stress-free. Taking care of ignition coils just makes good sense for Australian drivers who depend on their Outback to tackle diverse conditions from city streets to country roads.