Ignition coil problems are among top ten reasons for the check engine light repairs. Ignition coils transform low voltage electricity from the 12v battery into high voltage necessary for the spark plugs to generate the spark that causes air-fuel mixture to ignite and provide power for your vehicle.
Over time, ignition coils will deteriorate and need replacement. The good news is that typically it takes about 100,000 miles or more. Main cause of ignition coil problems are worn spark plugs – as the gap widens, ignition coils need to produce higher voltage to create the spark. This results in increased heat that causes premature wear of the ignition coils.
What are the symptoms of ignition coil problems?
If your vehicle’s ignition coils need replacement, you are likely to notice
- engine misfires
- rough idle
- difficulty starting
- loss of power
- worsening fuel economy
- check engine light
Above symptoms can have other causes, not just ignition coil problems, so we recommend taking your vehicle to a professional to have the problem diagnosed.
At Pat’s Garage we offer comprehensive car care including check engine light diagnostics and repairs. Our nationally ASE-certified technicians will pinpoint the root cause of the problem, and if the ignition coils need replacement, we can get this done, usually the same day. All repairs performed at our San Francisco auto repair facility are covered by 2 year / 24,000 mile warranty. We offer OEM quality parts, and in addition to technical excellence, we offer strong coffee and a friendly smile for everyone who visits Pat’s Garage.