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idle help

  1. F

    Cant get my mustang to run

    So I'm new here but I have a 1989 mustang gt. I swapped the engine out and everything has gone smooth until this little hiccup. I did everything like I was supposed to and the car fired up and It was running very well. I shut the car off crawled underneath to bolt up the exhaust and then I...
  2. Saine5.0

    Need idle help

    My 89 gt is having issues idling. It idles rough and sputters when I start it, after driving a few minutes it clears up and idles good. After driving for a while (20-30 minutes) I notice it idles really fast. Any help is appreciated
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