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Rough idle with A/C on

Tiny
JO1
  • MEMBER
  • 2007 KIA SPECTRA
  • 2.5L
  • V6
  • FWD
  • AUTOMATIC
  • 132,140 MILES
When my a/c is on the fan runs constant and when idling it runs rough
Saturday, July 25th, 2015 AT 3:16 PM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The fan is supposed to run all the time with AC on. The AC requires it. As far as running rough, some irregularity is expected with AC as the compressor adds more load to the engine. If it's excessive you should have it looked at to determine if there is an issue. Have the computer scanned for codes. This could reveal some hints as to what is going on if anything.
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Sunday, July 26th, 2015 AT 4:42 AM
Tiny
JO1
  • MEMBER
  • 2 POSTS
Thanks for responding quickly. I feel better now knowing it's common for my car. I've never owned a foreign made car so I'm still adjusting.
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Sunday, July 26th, 2015 AT 7:33 AM

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