1992 Ford Taurus Q&A

1992 Ford Taurus Question: How do I diagnose a very high idle speed problem

Idle on start is up to 2500rpm, then down to 1200rpm. I don't find any vaccum leak. Idle is 900 to 1000 RPM in gear , warm motor!!! -
Answer 1
There was a Ford TSB on this that basically said check the throttle cable and linkage and , if necessary , replace the idle air control valve. Some folks simply clean the valve , inside and out...... -