Skip the auto shop - Our mechanics make house calls

Q: The car is misfiring.

asked by on

My question is, do I need to replace the coil pack if I already changed the spark plug?

My car has 273290 miles.
My car has an automatic transmission.

Hi, thanks for writing in. There are many things that could cause a misfire, such as faulty spark plugs, a bad coil pack, bad injectors, a faulty crank position sensor or something else. I would recommend having an expert from Your Mechanic come to your home to diagnose the misfire to avoid repairing and/or replacing unnecessary parts.

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
  1. Home
  2. Questions
  3. The car is misfiring.

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: Rough idling, shaking, sluggish engine

Hello. It sounds like there may be a misfiring condition in multiple cylinders. A misfire means that one or more of the spark plugs in the vehicle’s engine are not firing properly. This will cause the engine to run rough...

Q: Problem with transmission and battery.

The brown junk is your radiator is the result of the dexcool coolant that General Motors uses in their vehicles. If the coolant is not routinely flushed out and replaced periodically it will break down. If air gets into the...

Q: Front passenger seat won't move backward

Hi. If it moves forward, but not backwards, it is most likely the switch. A few simple checks with a test light can determine what it needs. Make sure there isn’t anything in the track preventing the movement. I’ve seen...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...