4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

A/C or Engine problem?

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Old 05-23-2009, 05:09 PM
  #1  
hawks05
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Default A/C or Engine problem?

alright so when i start the car up and then turn on the a/c it seems like the car has a little struggle to keep going for a few seconds. for example the RPMs drop and rise and do that for a little bit.


any help?
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Old 05-23-2009, 07:55 PM
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cliffyk
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IAC...

Some have cleaned it and claimed success--for a while. Ford says it cannot be cleaned and should be replaced, $60 at your FLAPS...
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Old 05-23-2009, 11:49 PM
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dtkikols
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if you are cruising with the a/c on does the car start to chug and surge?

thats what mine did and i had to replace the MAF module i believe. it kept telling the computer i was at WOT and then not, and it would turn the compressor on and off. i used too much oil on my k&n and it ruined it.
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Old 05-24-2009, 02:51 AM
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hawks05
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the infamous IAC lol figures thought it could possibly be that.
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