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.

high idle and running rich

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Old 11-12-2006, 09:23 PM
  #11  
91cougarxr7
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Default RE: high idle and running rich

i dunno if it has one maybe its in the dist??? i know i didnt see one
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Old 11-12-2006, 09:29 PM
  #12  
92hatchLX
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Default RE: high idle and running rich

I'm 99% sure that 5.0s dont have cam and/or crank sensors. Are you sure that your idle screw isn't turned in all the way? You sure that you're not getting any other codes other than 13? If it was a big vacuum leak you'd have lean codes (from the unmetered air) and high idle from the extra air that's coming in. But since you said that the motor was recently torn down, I'd vote for a vacuum leak.
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Old 11-12-2006, 09:51 PM
  #13  
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Default RE: high idle and running rich

yes the idle screw is set right(set the idle). i took it back apart today and put in a new intake gasket just in case, all lines good. im at a lose for this anyother ideas?? i will check more into the vacumm but i doubt it since it runs fine till i touch the gas
also no other codes checked again like 4 times just in case i miss counted
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Old 11-12-2006, 09:54 PM
  #14  
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Default RE: high idle and running rich

ok is the tps set right?...when you pull the t/b did you clean when the egr valve was? replaced the PCV valve?
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Old 11-12-2006, 10:04 PM
  #15  
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Default RE: high idle and running rich

yea pcv is new, yea i also cleaned the pasage. im just not sure if the egr is messed up. b4 i did the repair the egr was plugged with rtv seallent (seemed like someone packed it in there pulled out like 1/2" of rtv out of the egr) but could something else cause the egr not to work right?
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Old 11-12-2006, 10:07 PM
  #16  
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Default RE: high idle and running rich

did you clean the screen?
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Old 11-12-2006, 10:08 PM
  #17  
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Default RE: high idle and running rich

yea learned that here was pretty gunky.
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Old 11-12-2006, 10:11 PM
  #18  
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Default RE: high idle and running rich

your tps set?
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Old 11-12-2006, 10:13 PM
  #19  
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Default RE: high idle and running rich

not much movement in it but was in the .80-1.0v range.
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Old 11-12-2006, 10:17 PM
  #20  
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Default RE: high idle and running rich

set it at .98 after doing so ..check what it is @ wot should be like 4.6 or so
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