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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1449 (Automatic Transmission - 4L60-E/4L65-E (Introduction, Service & Replacement)) >> Repair Instructions >> Park/Neutral Position Switch Replacement >> Installation Procedure

Installation Procedure

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    Fig 1: View Of PNP Switch, Lever And Manual Shaft
    GM394471Courtesy of GENERAL MOTORS CORP.
  1. Install the 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 it proper position for installation and the use of neutral position adjustment tool will not be necessary.
  3. Install the switch to the transmission with two bolts finger tight.
    4. Fig 2: Positioning The J 41364-A Onto The PNP Switch
    GM102270Courtesy of GENERAL MOTORS CORP.
  4. Position the tool J 41364-A  onto the park/neutral position switch. See Special Tools and Equipment . 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 securing the switch to 25 N.m (18 lb ft).

  6. Remove the J 41364-A  from the switch. See Special Tools and Equipment . If installing a new switch, remove the positive assurance bracket at this time.
  7. Connect the electrical connectors to the switch.
    8. Fig 3: View Of PNP Switch, Lever And Manual Shaft
    GM394471Courtesy of GENERAL MOTORS CORP.
  8. Install the transmission control lever to the manual shaft with the nut.

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

  9. Lower the vehicle.
  10. 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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