4L80-E Automatic Transmission
REMOVAL PROCEDURE4L80-E
1. Apply the parking brake.
2. Shift the transmission into neutral.
3. Disconnect the negative battery cable.
4. Remove the nut securing the transmission control lever to the manual shaft.
5. Remove the transmission control lever from the manual shaft.
Important: Because of the park neutral position switch lead connector breaking when disconnected, disconnect the harness connector at a point near the vehicle harness, not at the park neutral position switch lead.
6. Disconnect the two wiring harness connectors from the park/neutral position switch.
7. Remove two bolts securing the park/neutral position switch to the transmission.
8. Remove the park/neutral position switch from the manual shaft.
INSTALLATION PROCEDURE
- Tools Required
- J41364-A Neutral Position Adjustment Tool
1. If the park/neutral position switch did not slide off the manual shaft, file the outer edge of the manual shaft in order to remove any burrs.
2. Install the switch to the transmission manual shaft by aligning the switch hub flats with the manual shaft flats.
3. Slide the switch onto the transmission manual shaft until the switch mounting bracket contacts the mounting bosses on the transmission.
4. Install the switch to the transmission with two bolts.
Do not tighten the bolts yet.
5. Position the J41364-A onto the park/neutral position 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.
NOTICE: Refer to Fastener Notice in Service Precautions.
6. 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 securing the switch to 25 Nm (18 ft. lbs.).
7. Remove the J41364-A from the switch.
8. Install the wiring harness connectors at the vehicle harness.
9. Install the transmission control lever to the manual shaft with the nut.
- Tighten the control lever nut to 25 Nm (18 ft. lbs.).
10. Lower the vehicle.
11. Inspect the switch for proper operation. The engine must start in the Park or Neutral positions only. If adjustment is required, loosen the switch retaining bolts and rotate the switch slightly, then tighten the bolts and check the switch for proper operation or refer to Park/Neutral Position Switch Adjustment.