Gear shift lever moves freely up and down

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Take a look through these directions. They are for cable replacement. You will need to inspect the locations indicated in the attached pictures, which correlate with the directions to see if something is disconnected or broken.

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2005 Toyota Truck Tundra 2WD V8-4.7L (2UZ-FE)
Column Shift Assembly
Vehicle Transmission and Drivetrain Automatic Transmission/Transaxle Shift Linkage Service and Repair Procedures Column Shift Assembly
COLUMN SHIFT ASSEMBLY
COLUMN SHIFT ASSEMBLY

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COMPONENTS

REMOVAL
1. REMOVE STEERING COLUMN ASSEMBLY

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2. REMOVE PARKING LOCK CABLE ASSEMBLY
a. Remove the screw and cable No. 2.
B. Using a torx socket wrench, remove the 2 screws and cable No. 1.
C. Remove the spring.
D. Remove the 2 bolts and parking lock cable housing.
3. REMOVE SHIFT LEVER
a. Disconnect the connector.
B. Using a torx socket wrench, remove the torx screw and shift lever.
4. REMOVE SHIFT LEVER HOUSING
Using a torx socket wrench, remove the 3 torx screws and shift lever housing.

INSTALLATION
1. INSTALL SHIFT LEVER HOUSING
Using a torx socket wrench, install the shift lever housing with the 3 new screws.
Torque: 12 Nm (120 kgf-cm, 9 ft. Lbs.)
2. INSTALL SHIFT LEVER
a. Install the upper No. 2 steering column cover.
B. Using a torx socket wrench, install the shift lever with a new screw.
Torque: 18 Nm (180 kgf-cm, 13 ft. Lbs.)
c. Connect the connector.
3. INSTALL PARKING LOCK CABLE NO. 1 AND NO. 2
a. Apply MP grease on the lock pin and internal surface of shift lever housing.
B. Install the spring and parking lock cable No. 1 into the shift lever housing.

NOTICE: Be careful not to bend or twist the cable abnormally.

C. Using a torx socket wrench, install 2 new screws.
Torque: 2.9 Nm (29 kgf-cm, 25 inch lbs.)

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d. Wire the cable No. 1 and No. 2, as shown in the illustration.
E. Temporarily install the cable housing to steering column assembly with 2 new bolts.

NOTICE: Be careful not to bend or twist the cable abnormally.

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f. After installation, confirm the following items.
1 When the shift lever is in the P position and the pedal button is pushed in by 7 mm (0.28 inch), shift lever should be locked by lock pin.
2 When the pedal button is released, the shift lever should be able to be shifted from P position to other positions.
3 When the shift lever is in the N or D position and the pedal button is pushed in by 7 mm (0.28 inch), the shift lever should be able to be shifted.
G. Install the cable No. 2 to column upper bracket with the clip.
H. Install the cable end to the sliding block of the column upper bracket with the screw.
Torque: 2.2 Nm (23 kgf-cm, 19 inch lbs.)
i. After installation, check the following items.
1 When the pedal button is pushed, shift lever should be locked.
2 When the pedal button is released, shift lever should be unlocked.
4. INSTALL STEERING COLUMN ASSEMBLY
5. ADJUST CABLE HOUSING
a. Shift the shift lever to the P position.
B. Turn the ignition key to the LOCK position.

Pic 8

c. Loosen the 2 bolts and adjust the cable housing.

HINT:
Pedal button should touch the pedal plate cushion.
Brake pedal should not be moved by the pedal button.
Cable housing should not be touch the the brake pedal and the brake pedal plate cushion.

D. Torque the 2 bolts.
Torque: 10.5 Nm (110 kgf-cm, 8 ft. Lbs.)
6. CONFIRM SHIFT LOCK SYSTEM OPERATION
a. Only when the brake pedal is engaged and the ignition key is not in the LOCK position, the shift lever can be shifted from the P position to other positions.
When the shift lever is in the P position and the brake pedal is released, the shift lever cannot be shifted from the P position to other positions.
B. When the shift lever is not in the P position, the ignition key cannot be turned to the LOCK position.
Only when the shift lever is in the P position, the ignition key can be removed.
C. Cable No. 1 and No. 2 should not be deformed by other parts located around the steering column.

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Let me know if this helps.

Joe