4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Idle Issue!

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Old Jan 31, 2008 | 06:18 PM
  #1  
AvidMustang's Avatar
AvidMustang
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Default Idle Issue!

Ok, this only happens at idle. When I let of the brake the rpms jump from about 450ish to 750ish. I have no clue why this is. Any help would be appreciated!
Old Jan 31, 2008 | 06:23 PM
  #2  
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DrDeaths01GT
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Joined: Dec 2007
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From: Georgia
Default RE: Idle Issue!

Probably your IAC valve, needs to be replaced.
Old Jan 31, 2008 | 07:06 PM
  #3  
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AvidMustang
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Default RE: Idle Issue!

Do youn think i can clean it first?
Old Jan 31, 2008 | 08:47 PM
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jrherald420
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From: Smyrna, TN
Default RE: Idle Issue!

cleaning doesnt help for long. just buy it new
Old Jan 31, 2008 | 08:52 PM
  #5  
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arcticman37
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Default RE: Idle Issue!

If your short for cash cleaning will help but very soon you should need to replace it, it's somewhere around 50 bucks.
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