Parts for your 2018 Nissan Pathfinder-Ignition coils

Ignition Coils on the 2018 Nissan Pathfinder: What They Do and How to Keep Them in Check

The 2018 Nissan Pathfinder is a solid SUV that blends comfort, performance, and reliability. When it comes to its engine, one important component that plays a crucial role is the ignition coil. Unlike some older vehicles that use a distributor-based ignition system, the 2018 Pathfinder uses ignition coils to ensure the spark plugs fire at the right time, keeping the engine running smoothly.

Ignition coils are essential because they convert the low voltage from the car's battery into the high voltage needed to create a spark inside the engine's combustion chambers. This spark ignites the air-fuel mixture, making the engine run. Without properly functioning ignition coils, the engine might misfire, run roughly, or in worst cases, fail to start.

In the 2018 Nissan Pathfinder, the ignition system comes with individual ignition coils mounted directly on each spark plug, known as coil-on-plug (COP) setup. This design improves efficiency compared to older ignition systems by eliminating the need for spark plug wires and ensures a stronger spark. It means each cylinder has a dedicated coil, which helps with smoother power delivery and better fuel economy.

When it comes to maintaining ignition coils on your 2018 Pathfinder, keeping an eye out for symptoms of failure is key. Some common signs of a faulty ignition coil include rough idling, engine misfires, reduced fuel efficiency, a noticeable drop in power, and the Check Engine Light coming on. If your Nissan starts to feel sluggish or runs unevenly, it could be time for a coil check.

Regular servicing will typically include checking the ignition coils as part of the broader ignition system inspection. The coils themselves are quite tough but they aren't immune to wear and tear. Over time, heat, vibration, and exposure to moisture can cause the internal components to degrade. This can lead to electrical short circuits and coil failure.

Replacing the ignition coils on the 2018 Pathfinder is a fairly straightforward job. Because each coil sits right on top of its spark plug, accessing them usually only means removing the engine cover and unplugging the coil connectors. It's recommended to replace faulty coils in sets or at least address the affected cylinders to prevent engine performance issues. Trying to run the vehicle with one bad ignition coil could cause damage to the catalytic converter over time due to unburned fuel.

For those doing DIY repairs, it's important to handle the coils carefully. They are sensitive electronic components, so avoid dropping or jolting them. Also, make sure to match replacement coils with OEM specifications to ensure proper fit and function. Using cheap aftermarket coils might save money upfront but could lead to further headaches down the track.

Another maintenance tip is to check the coil connectors and wiring harness during servicing. Corroded or damaged connectors can cause intermittent failures that feel like coil problems. Cleaning and securing these connections improves reliability and can help avoid premature coil replacements.

If the ignition coils are checked and replaced when needed, the 2018 Nissan Pathfinder will continue to provide smooth running and dependable performance. Along with regular spark plug maintenance, keeping the ignition coils in good shape maximises engine efficiency and helps avoid costly breakdowns.

So, for anyone owning a 2018 Nissan Pathfinder, paying attention to the ignition coils during scheduled servicing is a smart move. They might not be the most noticeable part under the bonnet, but they sure are critical in keeping the engine firing up without a hitch. If any symptoms of ignition coil issues pop up, getting them inspected and replaced promptly makes for a smoother, hassle-free driving experience.