93' high idle?

[lydenw]

My 1993 just started idling high yesterday. It only does it when you drive awhile then stop and put it in park. It doesn't do it on the engine start.

It has been warm here(Boone, NC) lately after being below freezing for almost 5 months. I don't know if that has anything to do with it but I thought I should mention.

Any suggestions?

 

[rriicchh]

i had a high idle condition in my 91 with the 4.0 pushrod engine.turned out to be the throttle position sensor.