Misfiring

2006 JEEP COMMANDER
216,000 MILES • 4.7L • V8 • 4WD • AUTOMATIC
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ZETHWOO
  • MEMBER
  • 1 POST
Rough idle rough idle and skipping.
Nov 20, 2020 at 3:19 PM
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KASEKENNY
  • ASE Certified Mechanic
  • 18,907 POSTS
  • ASE Certified Mechanic
We need to do a couple things to start. First, run through this guide on the basics of misfires.

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

Then we need to check codes to see which cylinders are misfiring.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Then we need to check for vacuum leaks and make sure that is not causing any issues.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Once we check for these things we should have a pretty good idea what to do next. Thanks
Nov 20, 2020 at 5:15 PM
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