Ford Focus Forum, Ford Focus ST Forum - View Single Post - Rough Idle with AC on
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Old 06-05-2007, 11:33 AM   #2
dumbfounded17
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Join Date: Apr 2007
Fan#: 45860
Location: NoVa
What I Drive: 2000 Subaru Outback

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when they disconnected the battery to install the new alternator it reset the computer's idling, just disconnect the battery put the parking brake on reconnect the battery and start the car, let it run for a minute, then turn on a/c lights radio and let it sit another minute, then drive for about 30 mins so the car can relearn its idle!!
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