- Engine misfires.
- Rough idle.
- A decrease in car power, especially in acceleration.
- Poor fuel economy.
- Difficulty starting the engine.
- Check engine light is on.
- Exhaust backfiring.
- Increased hydrocarbon emissions.
How long do Hyundai ignition coils last?
around 100,000 miles
What would cause ignition coil to keep going bad?
The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable. A bad spark plug ignition cable will have a much higher than normal resistance. ... This excessive voltage creates a high amount of heat which consequently melts the coil's wire insulation.Sep 23, 2016
Is it common for ignition coils to fail?
Wear and tear is a common reason for ignition coils failing. It causes degrading of the insulation between the primary and secondary coil windings and the primary coil. The reduction in insulation can cause the coil to overheat.Jul 26, 2017
How does an ignition coil get damaged?
Coils fail for a variety of reasons including heat, vibration, or issues on the secondary side of the ignition system. ... Worn secondary ignition components such as spark plugs or wires can cause a coil work harder, require more voltage, and therefore significantly reduce the operating life of the coil.
What causes ignition coils to keep going bad?
The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable. A bad spark plug ignition cable will have a much higher than normal resistance. ... This excessive voltage creates a high amount of heat which consequently melts the coil's wire insulation.Sep 23, 2016
What will a faulty ignition coil cause?
One of the most common symptoms associated with a faulty ignition coil is engine performance issues. ... Faulty coils may cause the vehicle to experience misfires, a rough idle, a loss in power and acceleration, and a reduction in gas mileage. In some cases the performance issues may even result in the vehicle stalling.Jan 8, 2016