Results 1 to 2 of 2

Thread: Idle High - IAC?

  1. #1
    Join Date
    Jun 2002
    Birmingham, AL

    Idle High - IAC?

    I posted something a few weeks ago about my 89 SC w/173K miles making a short howling sound after it was turned off. Some of you believed that it was the IAC. A few days ago, the car made the sound while the ignition was on. Since then, the idle at neutral varies from 2100-2600 rpm. Is this the IAC? If so, is it easily replaceable?


  2. #2
    Join Date
    Jun 2002
    beaumont, CA


    I also own an 89 sc 5 speed and i had the same exact problem. After I changed the IAC idle went back to normal but the wired noise lasted for about a week after that then went away. The sensor is only about 60 dollars or so. I hated that noise, it sounds retarted. Sounds like a broken horn.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts