A/C On 2001 explorer sport

The AC compressor runs in every position where air blows against the window glass.

Ex -wife had an 04 Explorer (not the sport ) it had a small orange light by the control button that lit whenever the a/c was on.

While the engine is off unplug the connector going to the compressor crank it up and note how the compressor looks while the engine is running , turn off engine and re-connect compressor, if it looks different the compressor is running ,.. you can usually hear compressors kicking in and out when you are idling and it's not real hot.

the a/c compressor runs in every position except vent and heat (floor).

I'm having very similiar in my 95 EB 4 door explorer - except that mine works, but it is either freezing cold, or boiling hot - the climate control has ceased to be.

I imagine it's a thermostat somewhere that's gone wrong, but don't know where to begin to replace it - any information out there?

Also - does anyone have the TSB (if there is one) for the chronic transmission problems Explorers have?! I find it really disgusting that my dealer charged me $3000 to fix it, when it obviously a Ford issue to begin with..

Thanks,