ENGINE HAS HIGH IDLE WHEN STARTED FOR THE FIRST TIME OF THE DAY ABOUT 50% OF THE TIME

  • Tiny
  • johnpatrickgreeley
  • 1993 Buick Lesabre
  • 180,000 miles

There appears to be no vacumm leaks, cleaned the throttle body, replaced iac motor, still idles high on first start, doesn't idle high on any later starts, thanks, John

Monday, August 13th, 2012 AT 9:50 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Test the throttle position sensor closed and WOT voltages

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Monday, August 13th, 2012 AT 10:07 PM

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