1992 IAC Valve Question

[Airhead315]

Alright, after searching the forums and reading posts regarding eratic idling I decided to check out my IAC valve. I pulled the IAC off and checked it out...not much to see I guess theres no good way of looking at it and making a diagnosis...So I did the next best thing...I put it back in and started the Explorer when it was running I unplugged the IAC valve...no change in the idle at all...there seemed to be no effect. Its Cold out...about 30 degrees so I would have expected some sort of affect on the engine idle a stutter at least. So is this a good sign that the IAC valve has failed and will need replacement? Below ill explain my problem.

Well, its a comibination of two things I believe. First, the car will always idle high, once you shift into gear it has a tendency to want to stall until the engine warms up, then the idle is dangerously high, so high that when in snow conditions the back wheels will make it almost impossible to stop as when I hit the brakes the idle seems to continue to want to push my car. The front brakes will lock but the back tires will begin spinning(at slow speeds) and it will cause my car to want to keep going...I believe this is mostly bad rear brakes...but the extremely high idle cant be helping. Oh, dont think im a lucky one, I have transmission problems too...when first taking off the transmission wont shift into 2nd gear...after a while it gives up around 38mph and shifts into 3rd gear straight from first...after some highway driving the tranny seems to function completely normally.

Anyone have any ideas?

Thanks,
Aaron Riesbeck