5.0L General Discussion This section is for non-tech specific information pertaining to 5.0L Mustangs.

Idle problem

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Old Apr 23, 2012 | 01:50 PM
  #1  
tmcgeemc1's Avatar
tmcgeemc1
Thread Starter
 
Joined: Apr 2012
Posts: 2
From: Washinton
Default Idle problem

When my car is cold the idle starts at around 900-950 then drops way down to around 500 then back up then back down and so on. Does anyone know what the reason behind this is?
Old Apr 23, 2012 | 08:37 PM
  #2  
Bubba 95SN's Avatar
Bubba 95SN
4th Gear Member
 
Joined: Apr 2009
Posts: 1,893
From: N.C.
Default

Clean the throttle body and air bypass control solenoid. Reset idle speed. See if that does anything.
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