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Why does my car almost die while idling with the AC on? The AC stopped working as well when this started.

Tiny
HANSENER
  • MEMBER
  • 2000 FORD FOCUS
  • 83,000 MILES
At the same time I noticed the idling problem, I noticed that my AC was not blowing as cold as it used to. The idle will start normal for a few seconds, then rev up for a second or two then almost die and then rinse and repeat.
Monday, June 4th, 2012 AT 6:03 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Clean the idle air control valve and see what happens and also check AC high and low pressures
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Monday, June 4th, 2012 AT 7:33 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Check to see if the A/C compressor is cycling on and off when this is happening. It may be low on refrigerant, causing short cycling.
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Monday, June 4th, 2012 AT 10:06 AM

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