2006 Kia Optima it sputters

Tiny
RICK SMOTHERS
  • MEMBER
  • 2006 KIA OPTIMA
  • 2.3L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 125,124 MILES
When I you the air conditioner it sounds like it want to stall but it does not die out once I cut off the a/c
it runs fine
Monday, April 13th, 2015 AT 9:21 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Check for vacuum leaks on the engine and the idle air control valve (IAC). The IAC is responsible for maintaining the engine idle speed. When you turn the AC on, there is an added load on the engine which requires the IAC to increase the idle speed. If it doesn't, the added load will bog the engine down.
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Monday, April 13th, 2015 AT 9:31 AM

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