5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

IDLING ISSUE

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Old 06-28-2007, 11:19 PM
  #1  
whitestang86
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Default IDLING ISSUE

I've got a high output 5.0 in my 86 and when it warms up it tends to idle irratically like it almost wants to stall but it doesn't do it constantly. It eventually even's itself out and then will do it again eventually. Bad sensor?? TPS?? If anybody has had the same problem and found out what it was please let me know.
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Old 06-28-2007, 11:24 PM
  #2  
94StinkinLincoln
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Default RE: IDLING ISSUE

is it stock and if its not does it have a cam in it?
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Old 06-28-2007, 11:30 PM
  #3  
86 5.0L
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Default RE: IDLING ISSUE

dirty/bad IAC, then check your TPS
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Old 06-30-2007, 07:18 PM
  #4  
whitestang86
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Default RE: IDLING ISSUE

as far as i know its still stock, bought the car and the kid didn't tell me much about it, but i'll check my TPS and IAC
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Old 06-30-2007, 07:56 PM
  #5  
red95gtconvert
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Default RE: IDLING ISSUE

Check for vacuum leaks. Get a can of staring fluid and carefully spary it around the upper to lower intake and all vacuum hoses, it might give you a clue if there is a vacuum leak.
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Old 07-30-2007, 06:53 PM
  #6  
whitestang86
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Default RE: IDLING ISSUE

thanks dudes, i put a new IAC on and it doesn't want to stall out on me, thanks for the clues
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