Good morning,
I attached a procedure for adjusting the cable. It may be just an adjustment of the cable itself.
Roy
Cable and Bracket Adjustment -5.4L with 4R100 Transmission
1. Place the gearshift lever in the D position.
Place a three pound weight on the gearshift lever.
2. Raise and support the vehicle.
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3. Disconnect the transmission shift cable from the manual lever.
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4. Unlock the lock tab on the transmission shift cable.
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5. Place the manual control lever in the (D) position.
1. Place the manual control lever in the first gear position.
2. Move the manual control lever two detents to the (D) position.
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6. Connect the transmission shift cable to the manual control lever.
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7. Lock the transmission shift cable lock tab.
8. Lower the vehicle.
9. Remove the eight pound weight.
10. Carefully move the gearshift lever from detent to detent and compare with transmission settings. Verify that the vehicle will start in PARK or NEUTRAL and backup lamps illuminate in REVERSE. If not, Steps 1-5 must be repeated and include digital TR or TR sensor adjustment in NEUTRAL. Readjust if necessary.
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Tuesday, March 23rd, 2021 AT 6:09 PM