Recent content by 2nd79

  1. 2

    1999 C3500 L29 issues

    Unfortunately, my scan tool does not show IAC counts, misfires, or commanded idle speed. Is there a recommended tools that is reasonably priced that would show more information?
  2. 2

    1999 C3500 L29 issues

    New member here. I have a couple issues with my daily driven 1999 crew cab dually with 454 automatic. The first issue is an intermittent high idle. It does not seem to be related to temperature, the A/C being on, or anything else I can figure. I tried changing the IAC motor, and it seemed...
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