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when ac is on car dies


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Guest
Anonymous Poster
tamruss@clearwire.net

Mar 17, 2009, 3:06 PM

Post #1 of 5 (1750 views)
when ac is on car dies Sign In

When driving with ac or heat on the car dies at stop lights. Could this be a battery or alternator problem? Or is this bigger?


Guest
Anonymous Poster

Mar 17, 2009, 3:08 PM

Post #2 of 5 (1746 views)
Re: when ac is on car dies Sign In

This is a 2003 Ford Taurus.


Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Mar 17, 2009, 3:53 PM

Post #3 of 5 (1744 views)
Re: when ac is on car dies Sign In

When the A/C is on or the heater in the DEF position, the A/C compressor clutch engages, which drags down the idle speed. The engine has an IAC (idle air control) motor that is supposed to compensate for that drag by raising the idle speed. Assuming that there isn't a problem with the compressor, the IAC may just need cleaning. Have you had an injector cleaning service done, yet? Recommend every 30-40,000 miles.
Loren
SW Washington


Guest
Anonymous Poster

Mar 17, 2009, 5:21 PM

Post #4 of 5 (1740 views)
Re: when ac is on car dies Sign In

Thank you Lauren. I will have that done. I just bought the car in December so not sure that has been done.


Guest
Anonymous Poster

Mar 17, 2009, 5:22 PM

Post #5 of 5 (1739 views)
Re: when ac is on car dies Sign In

Sorry thanks Loren






 
 
 






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