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I have a 2004 F250, 5.4, automatic, 4wd. Whenever I put it reverse the back-up lights don't always come on. I can put a slight upward pressure on the gear shift lever and the lights come on. Does this mean I need to replace the reverse switch or is there an adjustment I can make to it? Is it hard to change?
Block the wheels and set the parking brake. Put the trans in neutral.
Remove the nut that holds the shift lever to the side of the transmission. Don't remove the cable from the lever. Unplug the wiring from the TRS. Remove the two bolts that hold the TRS to the trans. Remove the TRS. Often it rusts to the shaft so it may take some force to get it off.
Install the new TRS. There is an alignment mark on the rotating part in the center that aligns with the mark on the TRS housing. Once they are aligned tighten the two bolts. Plug in the harness, put the lever and nut back on and you're done.