Skip the auto shop - Our mechanics make house calls

Q: Can Ignition Problems Cause Engine Misfires?

asked by on

Can ignition problems cause engine misfires?

A: Faulty ignition system components are among...

Faulty ignition system components are among the leading causes of engine misfires. Parts such as spark plugs, spark plug wires and boots, and ignition coils are highly stressed by high voltage and a high underhood temperature environment. While most of these components are greatly improved over older versions, some of them still have a recommended service life.

For instance, spark plug replacement is listed on the schedule of recommended maintenance provided by manufacturers to be performed at certain mileage intervals. However, ignition coil life varies widely and so they generally remain in service until or if, failure requires replacement.

Misfires can be caused by a variety of conditions so accurate diagnosis on today’s complex vehicles demands training, experience, and sufficient tooling. Replacing parts that aren’t needed can be avoided by allowing a certified technician to perform an accurate diagnosis of the engine misfire.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car misfiring

An ignition coil could very well be the cause of your concern. If the diagnostic trouble code shows the cylinder being affected, the ignition coils can be switched to see if the misfire follows the coil. Other issues such as...

Q: Car turns over, but will not start. The accelerator pedal produces NO change in engine performance.

Hi there. Check the ignition system and see if the spark plugs have any spark. If the spark plugs have no spark, then check for power to the coil. If the there is no power to the coil, then check...

Q: Car clicks and doesn't start.

Even though it just clicks the battery can still be the problem. Low battery voltage wont have enough juice to turn the starter all the way. The partial engagement will sound like a click. A few other things like bad,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.