Engine has a rough idle

Tiny
PEPEDECOTEAU
  • MEMBER
  • 2010 JEEP COMPASS
  • 2.4L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 14,200 MILES
I change the plugs, and coil pack and my car still rough idle. Can a bad fuel pump hose inside d gas tank cause this?
Saturday, June 18th, 2022 AT 9:18 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

There are a number of reasons why an engine can have rough idle or misfire.
It could be due to ignition issue, fuel injectors, low fuel pressure, vacuum leak etc.

Take a look at this guide. It covers the usual issues.

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

Are you getting any error codes? Is the check engine light on?
If the engine light is illuminated, scanning, and retrieving the code(s) can help with the diagnostics.

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

Let me know of any questions.
Thank you.
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Saturday, June 18th, 2022 AT 3:43 PM

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