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Rough idle

Tiny
CANDACE LEWIS BREWER
  • MEMBER
  • 2001 MITSUBISHI GALANT
  • 2.4L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 189,000 MILES
My car will start, but irregular idle then does. I have had the MAF Sensor, all sensors changed basically. No vacuum leak. Any new ideas?
Thursday, September 1st, 2016 AT 10:19 PM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Have you checked for codes in the computer yet?
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Thursday, September 1st, 2016 AT 10:42 PM
Tiny
CANDACE LEWIS BREWER
  • MEMBER
  • 2 POSTS
Yes, also used throttle cleaner on it. Im about ready to sell it, this would be a mechanics dream.
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Saturday, September 3rd, 2016 AT 3:26 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,289 POSTS
I would start with a compression test to see if you have a low cylinder. You could have a intake valve leaking.

Here is a guide that will show you how to test it.

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

Best, Ken

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Monday, September 5th, 2016 AT 9:49 AM

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