I bought this truck some years ago and had intermittent accelerator problems for years. I replaced the TPS to no avail. This spring the problems got severe and constant. The culprit was the IVS and/ or its connector that is mounted on this assembly and not available separately. Replacing the entire pedal assembly cured those problems. The replacement took me less than 5 minutes and the price is a fraction of what Ford would want for the part.