4 Clear Signs Your Engine’s Spark Plugs or Coil Packs Are Failing

Driving a vehicle with a rough-running engine is always a bad idea, costing you more in the long run than having it serviced. With proper maintenance and care, your vehicle’s engine can run smoothly without an issue, which entails having the spark plugs and coil packs replaced according to the scheduled service interval outlined in your owner’s manual. Continue reading to find the signs of an engine with failing spark plugs or coil packs, and book a maintenance appointment to prevent such issues from happening with your vehicle.
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4 Clear Signs Your Engine’s Spark Plugs or Coil Packs Are Failing
1. Poor Performance and Fuel Economy
When spark plugs or coil packs fail, the engine’s air-to-fuel ratio becomes too rich because there isn’t enough ignition to ignite the fuel in the cylinder. This can lead to one or more cylinders misfiring or failing to fire altogether, resulting in reduced performance and increased fuel consumption. If a cylinder isn’t firing, running the engine without addressing the issue will only cause serious damage.
2. Rough Idle
A misfiring engine will cause the engine to have a rough idle, which will, in turn, be felt through the cabin, especially when stopped in traffic. Continuing to drive the vehicle in this condition will cause additional issues aside from the original problem, costing you in various ways, including paying more for fuel, repairs, and parts.
3. The Engine Struggles to Start
When spark plugs or coil packs begin to show signs of failure, the spark provided will be considerably less when those parts are new, causing the engine to have a harder time starting. This issue can be even worse in colder climates, as the engine will require proper function to overcome the colder temperatures.
4. Check Engine Light is On
Once spark plugs or coil packs fail to the point where they don’t provide enough spark for the fuel to ignite, the check engine light will turn on. At this point, you will want to make visiting a shop a priority, as the fix is usually changing the spark plugs or coil packs, restoring your vehicle’s performance, efficiency, and reliability.
Book Your Service Appointment at Yellowknife Motors
Driving a vehicle with misfires is a disaster waiting to happen, putting strain on your engine and causing excessive wear that can quickly turn into major repairs. Avoid prematurely wearing your engine by booking a service appointment to have the spark plugs replaced on time. Also, it’s advised to have the coil packs replaced on older vehicles with high mileage, but be sure to contact us to get specific advice for your specific vehicle’s make, model, and mileage.