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

Idle problem

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Old May 22, 2007 | 03:24 AM
  #1  
clix813's Avatar
clix813
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4th Gear Member
 
Joined: Jul 2006
Posts: 1,007
From: Az
Default Idle problem

Well after cleaning my IAC and replacing my PCV my car still idles wierd it goes up and down between 400 and 700 rpm. It will drop and rise about 5 times every 30 seconds. What else could it be?
Old May 22, 2007 | 03:28 AM
  #2  
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CrazyDan
2nd Gear Member
 
Joined: Aug 2006
Posts: 313
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Default RE: Idle problem

could be your chip put it back to factory tuning and see what happens i have a simlar problem[:@]
Old May 22, 2007 | 05:10 AM
  #3  
BleedinBlue's Avatar
BleedinBlue
5th Gear Member
 
Joined: Jun 2006
Posts: 4,355
From: Eureka, Mo
Default RE: Idle problem

Take off and replace a battery cable so that the computer will reset its self.

If that doesn't take care of the problem, my $$ is on a vacuum leak.
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