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

Random High Idle

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Old 04-11-2008, 03:19 PM
  #1  
dennis_112
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Default Random High Idle

So I have had my clutch installed for about a week now and twice since then I have had a high idle. Two times I have randomly being driving (babying so the clutch can set-in) and the idle stays at 1100. Like when you start you car and it hangs there for a bit. It exactly like that but it dont go down. So I turn the car off and start it back up and it gone. It never has done it until the clutch was installed. Is it related or not? Could it be that my clutch isnt adjusted right, whats your thoughts? Clutch was professionally installed by a well known shop, btw.

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Old 04-12-2008, 07:47 AM
  #2  
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Default RE: Random High Idle

BUMP
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Old 04-12-2008, 01:29 PM
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avlon06
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Default RE: Random High Idle

i have a similar prob check your IAC and make sure there is no gunk in there.. or try cleaning out the TB with some blaster stuff that i cant think of the name right now
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Old 04-12-2008, 01:33 PM
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35thAnni99GT
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Default RE: Random High Idle

cold idle circuit? if you've changed your driving patterns the computer may be "relearning" the idle. IAC usually causes problems with idles that won't hold or dieing while cruising. Check your tune in your handheld and reset the idle to what you want it,
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Old 04-14-2008, 05:08 PM
  #5  
dennis_112
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Default RE: Random High Idle

OK I will try to reprogram the tune. The idle doesnt move at all neutral. It will go to like 1200,not everytime I drive, just randomlyand stay there. Then I can turn the car off and start it back up and its gone. I have also noticed the car takes longer to start now, could that be related.
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