will not idle steady with a/c turned on

2006 FORD CROWN VICTORIA
40,000 MILES
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EAMMANN
  • MEMBER
  • 1 POST
car idles OK with vent/heater on. When I turn on the a/c it alternates between 900 rpm and 500-600 rpm when the a/c unit cycles on and off. I think the freon level might be low because it is normally cold a/c at idle but now it's not, only get cold when driving. Any suggestions besides getting the freon level checked?
Sep 11, 2011 at 8:33 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
could be the idle air control motor not compensating for the load. you need to have it checked. the ac issue sounds like a separate issue. it may be low in freon and needs to be checked for a leak.

Roy
Sep 11, 2011 at 11:13 PM
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