Hey guys,
Just to start off I searched a bunch of forums and used this wmburns post as a start:
http://www.allfordmustangs.com/foru...-dieing-idle-idling-rough-14.html#post2260649
I came out of work the other day and my car had a high idle, shifting gears the RPMs would hang. There was also a new sound like a loud hum/low horn so I figured vacuum leak/IAC. I have replaced the old IAC and the hum went away and I have also cleaned the MAF sensor with the appropriate cleaner. I checked fuses 2.2 and 2.8, nothing wrong.
Today I started the car and pulled the IAC plug. My idle went exactly where it usually is - 700 and the hanging RPM issue went away. As soon as I plug the IAC in, the idle spikes and I have the hanging RPM issue. I tried letting the car sit idling for 15 minutes and nothing changes.
Has anyone had this problem? In wmburns' post he goes into detail of what the next steps are if the idle doesn't change but mine went right to normal when I disconnect the IAC. Please let me know if you can help.
Thanks,
Just to start off I searched a bunch of forums and used this wmburns post as a start:
http://www.allfordmustangs.com/foru...-dieing-idle-idling-rough-14.html#post2260649
I came out of work the other day and my car had a high idle, shifting gears the RPMs would hang. There was also a new sound like a loud hum/low horn so I figured vacuum leak/IAC. I have replaced the old IAC and the hum went away and I have also cleaned the MAF sensor with the appropriate cleaner. I checked fuses 2.2 and 2.8, nothing wrong.
Today I started the car and pulled the IAC plug. My idle went exactly where it usually is - 700 and the hanging RPM issue went away. As soon as I plug the IAC in, the idle spikes and I have the hanging RPM issue. I tried letting the car sit idling for 15 minutes and nothing changes.
Has anyone had this problem? In wmburns' post he goes into detail of what the next steps are if the idle doesn't change but mine went right to normal when I disconnect the IAC. Please let me know if you can help.
Thanks,