Re: High idle solenoid
make sure the high idle is really the problem.
when I bought my truck I noticed the fast idle didn't work.
I figured it was bad, but ummm... actually it wasn't plugged in.
Figures, truck had spent it's whole life in orlando florida.
put some power to the fast idle selenoid and see if it engages.
'89 F250 7.3 IDI, c6, 3.55rear, 2wd, 152k miles