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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 833 (Automatic Transmission - 4L60-E/4L65-E (Service & Replacement)) >> Repair Instructions >> Park/Neutral Position Switch Replacement >> Installation Procedure

Installation Procedure

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  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.

    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.
    Fig 1: Installing PNP Switch Bolts, Manual Shaft Lever Nut & Transmission Control Lever
    G02111735Courtesy of GENERAL MOTORS CORP.
  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.
    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. If installing a new switch, remove the positive assurance bracket at this time.
    Fig 2: Installing J 41364-A Onto PNP Switch
    G02111736Courtesy of GENERAL MOTORS CORP.
  7. Install the transmission control lever to the manual shaft with the nut.

    Tighten 

    Tighten the nut to 25 N.m (18 lb ft).

    Fig 3: Installing Transmission Control Lever To Manual Shaft With Nut
    G02111737Courtesy of GENERAL MOTORS CORP.
  8. Connect the PNP switch electrical connectors (2).
  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.
    Fig 4: Connecting PNP Switch Electrical Connectors
    G02111738Courtesy of GENERAL MOTORS CORP.