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4L60-E/4L65-E/4L70-E - Automatic Transmission



Park/Neutral Position Switch Replacement
^ Tools Required
- J 41364-A Park Neutral Switch Aligner

Removal Procedure





1. Apply the park brake.
2. Shift the transmission into neutral.
3. If equipped with 4-wheel drive (4WD), remove the front propeller shaft.
4. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
5. Disconnect the park/neutral position (PNP) switch electrical connector (2).





6. Remove the manual shaft lever nut.
7. Remove the transmission control lever from the manual shaft.
8. Remove the PNP switch bolts.
9. Remove the PNP switch from the manual shaft. If the PNP switch did not slide off the manual shaft, file the outer edge of the manual shaft in order to remove any burrs.

Installation Procedure





1. Install the PNP switch to the transmission manual shaft by aligning the switch hub flats with the manual shaft flats.
2. Slide the PNP switch onto the transmission manual shaft until the switch mounting bracket contacts the mounting bosses on the transmission.

3. Install the PNP switch bolts finger tight.

Important: If a NEW PNP switch is being installed, the switch will come with a positive assurance bracket. The positive assurance bracket aligns the new switch in its proper position for installation and the use of the park neutral switch aligner will not be necessary.






4. Install J 41364-A onto the PNP switch. Ensure that the two slots on the switch where the manual shaft is inserted are lined up with the lower two tabs on the tool.

5. Rotate the tool until the upper locator pin on the tool is lined up with the slot on the top of the switch.
^ Tighten the bolts to 25 Nm (18 ft. lbs.).

Notice: Refer to Fastener Notice in Service Precautions.

6. Remove the J 41364-A from the switch. If installing a new switch, remove the positive assurance bracket at this time.
7. Install the transmission control lever to the manual shaft with the nut.
^ Tighten the nut to 25 Nm (18 ft. lbs.).





8. Connect the PNP switch electrical connector (2).
9. If equipped with 4WD, install the front propeller shaft.
10. Lower the vehicle.
11. Check the switch for proper operation. The engine must start in the park (P) or neutral (N) positions only. If proper operation of the switch can not be obtained, replace the switch.

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