I was able to get the whole throttle body at the local pick n pull so my first step is going to be just changing the whole TB. Maybe that will work...if not, then I'll start on the TPS and solenoid, etc. By the way, thanks for the heads up for the page with all of the manuals - great deal!

96 F250 4x4 Powerstroke
92 F150 4x4 Cummins 4BT Turbodiesel
90 Mitsubishi Mighty Max 4x4 3.0