Skip the auto shop - Our mechanics make house calls

Q: Check Engine light on with a misfire in cylinder 1

asked by on

The Check Engine light is on with a misfire in cylinder 1. The spark plug and coil pack has already been replaced.

Hello. Although you have just replaced the spark plug and coil pack, there could be several things going on here. It is possible that the wiring to the coil pack is broken, there could be a broken wire somewhere, or something could be wrong with the spark plug and coil pack itself. Another possibility is that the fuel injector may not be working. If cylinder 1 is bad, you may need to replace the entire engine. I recommend having a professional mechanic inspect your engine misfiring issue to determine what repairs are needed for your vehicle.

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. Check Engine light on with a misfire in cylinder 1

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: My car is shaking.

Hello. the Diagnostic Trouble Codes would have to be retrieved to begin the diagnosis. Unless the shop retrieved all codes and performed a diagnosis and tested the coils (there are six of them on your engine), what they have told...

Q: I need to know the complete price it will be on my 2008 Chevy cobalt ls

Billing question sent to CS for the cost to diagnose a check engine light and the cost to replace spark plugs on a 2008 Chevrolet Cobalt.

Q: cooling fans not coming on

Hi there. It's possible that you have a relay problem that is causing the cooling fans to not activate correctly. I'd start by checking all electrical connections to the cooling fan motor, while checking for any frayed wires or grounding...

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...
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...
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...