Hi and thanks for using 2CarPros. Com.
The shift linkage may be out of adjustment or the cable itself may be binding. Here are the directions for removing and replacing. What I suggest is to secure the vehicle with the parking brake and disconnect the cable at the transmission. Once it is disconnected, try shifting (even though it is disconnected). If the cable is still stiff, replace the cable or try to lubricate the cable to loosen it.
Here are the directions for removal and replacement:
1. Disconnect the transmission shift cable from the steering column.
1 Disconnect the transmission shift cable from the transmission selector lever arm and support.
2 Disconnect the transmission shift cable from the steering column instrument panel bracket.
2. Disconnect the cable push pin.
3. Push the rubber grommet and transmission shift cable through the bulkhead.
4. WARNING: The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the RH kick panel area. Failure to do so may result in unexpected inflation or deflation of the air springs which may result in shifting of the vehicle during these operations.
Raise and support the vehicle.
5. Remove the transmission shift cable from the automatic transmission.
1 Disconnect the transmission shift cable from the manual control lever.
2 Depress the lock tabs to release the transmission shift cable and disconnect the transmission shift cable from the transmission shift cable bracket.
6. Remove the shift cable bracket from the transmission (4.6L).
1 Remove the bolts.
2 Remove the bracket.
7. Remove the shift cable bracket from the transmission (5.4L).
1 Remove the bolts.
2 Remove the shift cable bracket.
1. Note: If equipped with air suspension, reactivate the system by turning on the air suspension switch. Follow the removal procedure in reverse order.
Adjust the shift cable.
Let me know if this helps or if you have other questions. I will add, often times these cables need replaced. They begin to corrode internally causing it hard to shift.
Images (Click to make bigger)
Tuesday, October 16th, 2018 AT 6:56 PM