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.

idles and runs rough--feels like missfire

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Old 05-02-2010, 12:09 AM
  #11  
67mustang302
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If the codes are correct then it seems like you have more than one problem. Check to see if the IAC is stuck(if there's a way you can check).
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Old 05-02-2010, 03:53 PM
  #12  
mjr46
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if it is currently running rough, grap a set of insulated pliers and pull wires one by one replacing them back on the cap until you pull one where no load change is noticed, then at that point you'll have the cylinder that is misfiring and we can focus diagnosis on that cylinder
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Old 05-02-2010, 06:57 PM
  #13  
mmanore5.0
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well......Huston we have a problem! I have a bad TC, I was doing the cylinder test after the code diagnostic test and as soon as it rev'd up to about 4000 rpm, bam blew it out. I am going to replace and check everything and as osoon as that is completed I will resume my previous problem, thanks for your help!
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Old 05-02-2010, 08:09 PM
  #14  
mjr46
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bad tc??? torque convertor??
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Old 05-03-2010, 02:27 PM
  #15  
mmanore5.0
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yes, I am pulling the tranny out this afternoon
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Old 05-11-2010, 01:23 PM
  #16  
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well, I did a cylinder balance test. I found #3 bad. i checked all wires and connections, all good. I found the injector bad, replaced and running perfect!!!
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