I have a 97 F150 4.6 automatic 4x4. When you try to start the engine the starter grinds like it's not engaging with the flywheel unless you pull back on the shifter then it fires right up. It had issues with the shift tube, the tube was broken, the screws at the end of the tube were loose, and the bushings were wore out. I fixed these and the play is gone from the shifter, but I still have to pull back on the shifter to avoid the grinding and to get it to start. Any ideas?

 

Sounds like the transmission range select switch is faulty, out of adjustment, or the linkage/bushings are worn.