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Car dies when AC is one while stopped

Tiny
ILOVENATE01
  • MEMBER
  • 2005 KIA SPECTRA
  • 200,000 MILES
When a/c is on while stopped car jerks and will shut off, if car is moving everything is fine. What does this mean? Tune up? Why does it die? How much is a tune up normally? Someone please help, could this be caused by earlier starter issues?
Friday, July 26th, 2013 AT 5:29 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
The first things I would recommend you check are for vacuum leaks and check the idle air control (IAC). The IAC is responsible for maintaining the engine idle.
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Friday, July 26th, 2013 AT 7:03 PM
Tiny
ILOVENATE01
  • MEMBER
  • 2 POSTS
Where is that located
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Friday, July 26th, 2013 AT 8:55 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
The IAC is located on the throttle body. It is what allows air to enter the engine so that it continues running at an idle. However, when the AC is on, it should bump the idle up to compensate for the additional load on the engine.
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Saturday, July 27th, 2013 AT 6:13 PM

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