Mechanics

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

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
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Johnpatrickgreeley
August 13, 2012.



Test the throttle position sensor closed and WOT voltages

Rasmataz
Aug 13, 2012.