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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Park/Neutral Position Switch Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  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.
    Fig 1: View Of PNP Switch, Lever And Manual Shaft
    GM394471Courtesy of GENERAL MOTORS CORP.
    3. 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.
  3. Install the PNP switch bolts finger tight.
    4. Fig 2: Positioning The J 41364-A Onto The PNP Switch
    GM102270Courtesy of GENERAL MOTORS CORP.
  4. Install J 41364-A  onto the PNP switch. See Special Tools . 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. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  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:  Tighten the bolts to 25 N.m (18 lb ft).

  6. Remove the J 41364-A  from the switch. See Special Tools . 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:  Tighten the nut to 25 N.m (18 lb ft).

  8. Connect the PNP switch electrical connector (2).
    Fig 3: Connecting Park/Neutral Position (PNP) Switch Electrical Connector
    GM1284299Courtesy of GENERAL MOTORS CORP.
  9. If equipped with 4WD, install the front propeller shaft. Refer to Propeller Shaft Replacement - Front in Driveline/Axle.
  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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