Car stalling when I turn on the heater fan

Tiny
STMBLDR1
  • MEMBER
  • 2010 KIA FORTE
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 107,000 MILES
When I turn heater fan on, engine will stall. When I turn fan off car will restart.
Wednesday, October 30th, 2019 AT 10:16 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,355 POSTS
Welcome to 2CarPros.

This is an interesting one. When you turn on the fan, is the defroster on or AC? Also, when this happens, are you able to keep the car running by pressing the gas?

I'm trying to determine if it is a grounding issue or the added load from AC/Defroster causing it. If that is the case, it could be a simple idle air control valve.

Let me know.

Joe
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Wednesday, October 30th, 2019 AT 7:45 PM

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