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Home >> Hummer >> 2008 >> H3 Adventure, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> On-Vehicle Repair Instructions >> Park/Neutral Position and Backup Lamp Switch Replacement (3.7L) >> Installation Procedure

Installation Procedure

    Fig 1: View Of Park/Neutral Back Up Switch
    GM1302093Courtesy of GENERAL MOTORS CORP.
  1. Install the park/neutral back up switch to the transmission manual shaft by aligning the switch hub flats with the manual shaft flats.
  2. Slide the switch onto the transmission manual shaft until the switch mounting bracket contacts the mounting bosses on the transmission.
    3. IMPORTANT: If a new switch is being installed, the switch will come with a positive assurance bracket. The positive assurance bracket aligns the new switch in the proper position for installation and the use of the J 41364-A  will not be necessary.
  3. Loosely install the 2 park/neutral back up switch bolts.
    4. Fig 2: Identifying J 41364-A & PNP Switch
    GM102270Courtesy of GENERAL MOTORS CORP.
  4. Position the J 41364-A  onto the park/neutral back up switch. Ensure that the 2 slots on the switch where the manual shaft is inserted are lined up with the lower 2 tabs on the tool.
    5. NOTE: Refer to Fastener Notice .
  5. Rotate the switch until the upper locator pin on the tool is lined up with the slot on the top of the switch.

    Tighten:  Tighten the park/neutral back up switch bolts 27 N.m (20 lb ft).

  6. Remove the J 41364-A  from the switch. If installing a new switch, remove the positive assurance bracket at this time.
    7. Fig 3: View Of Park/Neutral Back Up Switch Electrical Connector
    GM1302100Courtesy of GENERAL MOTORS CORP.
  7. Connect the electrical connector (3) to the switch (4).
    8. Fig 4: View Of Transmission Control Lever
    GM1302094Courtesy of GENERAL MOTORS CORP.
  8. Install the transmission control lever to the manual shaft with the nut.

    Tighten:  Tighten the control lever nut to 20 N.m (15 lb ft).

  9. Lower the vehicle.
  10. Adjust the automatic transmission range selector cable. Refer to Range Selector Lever Cable Adjustment (3.7L)  or Range Selector Lever Cable Adjustment (5.3L) .
  11. Check the switch for proper operation. The engine must start in the P (PARK) or N (NEUTRAL) positions only. If proper operation of the switch can not be obtained, replace the switch.
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