Q: Car is skipping while idling and while driving. Added new spark plugs and wires and it's still doing the same thing

asked by on

Do you think I have a bad coil pack? The car has been running fine until a couple of weeks ago,added new spark plugs and wires and car is still misfiring

My car has 218000 miles.
My car has an automatic transmission.

Hey there. The coil pack is one of a few different components that can contribute to a misfire. The ignition module which sits beneath the coil pack can be at fault. Other components can be a faulty fuel injector or injectors, as well as a crankshaft sensor. If any of the injectors have a poor spray pattern, this can contribute to a misfire. Also, if the crankshaft sensor signal is erratic to the engine control module, a misfire can occur. I recommend having a certified technician inspect the misfire in person so that this can be corrected.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Car is skipping while idling and while driving. Added new spark plugs and wires and it's still doing the same thing

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: I can not get my car to start. Please help!

It sounds like there is a short in the electrical side of your fuel system. Also, when an ecm gets replaced, often times there is a reprogramming service that is required to get the vehicle to start. This is especially...

Q: Engine keeps misfiring on humid days

The humidity in the air will also affect the air pressure around your vehicle. When air pressure is affected, engine vacuum is also affected. The engine's positive crankcase ventilation system relies on engine vacuum to function properly. If the engine...

Q: My car idles sometimes and there's a problem with the spark plug and coil all the time

Hello. Idle issues can be caused by a few different things. A few common causes are faulty coils, or an issue with the idle air control valve. The ignition coils are the components that generate the engine's spark. It may...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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.