Q: Can Ignition Problems Cause Engine Misfires?

asked by on

Can ignition problems cause engine misfires?

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Can Ignition Problems Cause Engine Misfires?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Check engine light is on car sluggish and shaky

Your check engine light is on due to the misfire and engine running issue and should not be due to the oil change overdue. You should have the check engine light scanned then the code can identify that cause of...

Q: Truck dies and wont start till cools down already replaced coil

The problem sounds like you may be losing spark signal to the ignition system. When the engine will not start you need to verify you are losing spark. If it is then you most likely have a failed ignition module...

Q: Spark Plugs spark once

Either a failing crankshaft sensor or impulse wheel could be the cause of the fluctuating RPM reading. The crankshaft sensor signal is often used to start both fuel pump operation and start the ignition coils with the camshaft sensor setting...

Related articles

P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.