I am not sure if this will help or not. I have found out that my accelerator pedal assembly was bad about 2 years ago. I had my truck in to my mechanic for a vaccum pump, (before I discovered this wonderful site). I told him I wanted it checked over for any other problems. He is a good friend and always lets me know what the problem is so I can fix it myself, if I can. I believe he said that he tested it with an oscillioscope. I don't know what made him suspicious of the pedal but he said it had some spikes in voltage at lower RPM's. I also am learning that this has an effect on the transmission. I usually have my foot in it so I figured it wasn't really a problem. With my newfound knowlege, I suppose I had better replace that throttle pedal.
94 1/2 ton 4x4 standard cab 6.5 turbo diesel 147,000 miles, Autometer sport comp guages, (EGT, Boost, & Trans temp) 3\" downpipe and exhaust no cat w/magnaflow muffler