Engine rough idle

300,000 MILES • 2.3L • 4 CYL • 2WD • AUTOMATIC
Avatar
MELISSA DAVIS2
  • MEMBER
  • 2 POSTS
My car had a rough idle, loss of power etc. Cleaned the EGR and intake did not help made the car run worse would not even idle. Took the EGR off to clean again and it’s wet near the plunger. Why and what do I do?
Jan 5, 2019 at 11:06 AM
Advertisement
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,561 POSTS
Hello,

It sounds like you have a cylinder that has low compression let's confirm the issue by following this guide:

https://www.2carpros.com/articles/how-to-test-engine-compression

This guide may help as well:

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

Please run down these guides and report back.

Jan 7, 2019 at 4:11 AM
Avatar
MELISSA DAVIS2
  • MEMBER
  • 2 POSTS
We ended up changing the timing belt since it was looking very dry rotten, water pump, EGR value, MAP sensor, PVC value. She finally ran good for a few minutes, we shut her off then go back a few minutes later and absolutely nothing. The fuel pump is getting no power at all. We’ve tested the fuel pump and it’s good but still no power.
Jan 19, 2019 at 8:26 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,561 POSTS
Hmm, I would double check the timing belt to make sure its still working right and if so it sounds like the PGM FI relay has gone out. But to be sure here is a guide and the location of the relay so you can check it out:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please run this test and get back to us.
Jan 21, 2019 at 2:19 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle