Misfire code says cylinder 1?

Tiny
ANTHONY BUGBEE
  • MEMBER
  • 2007 CHEVROLET AVALANCHE
  • 5.3L
  • V8
  • 4WD
  • 128 MILES
The code says cylinder 1 but it acts like if you took a wire off, shifts hard, and studders.
Monday, December 4th, 2023 AT 12:20 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,380 POSTS
So, a misfire can be the spark plug, ignition coil/wire, a fuel injector or low compression. Let's remove the spark plug first for inspection, this guide can help, and I have included instructions in the images below that will help you on your car:

https://www.2carpros.com/articles/how-to-change-spark-plugs

This guide can help as well:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Please upload an image of the spark plug end so I can see it. Check out the images (below). Please let us know what happens.

Images (Click to make bigger)
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, December 4th, 2023 AT 3:23 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links