GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41364-A Neutral Position Adjustment Tool

Removal Procedure

  1. Apply the parking brake.
  2. Shift the transmission into neutral.
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .

  4. Object Number: 394471  Size: SH
  5. Remove the nut securing the transmission control lever to the manual shaft.
  6. Remove the transmission control lever from the manual shaft.
  7. Disconnect the electrical connectors from the switch.
  8. Remove the bolts securing the park/neutral position switch to the transmission.
  9. Remove the park/neutral position switch from the manual shaft. 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.

Installation Procedure


    Object Number: 394471  Size: SH
  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.

  4. Install the switch to the transmission with two bolts finger tight.

  5. Object Number: 102270  Size: SH
  6. Position the tool J 41364-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.
  7. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  8. Rotate the tool until the upper locator pin on the tool is lined up with the slot on the top of the switch.
  9. Tighten
    Tighten the bolts securing the switch to 25 N·m (18 lb ft).

  10. Remove the J 41364-A from the switch. If installing a new switch, remove the positive assurance bracket at this time.
  11. Connect the electrical connectors to the switch.

  12. Object Number: 394471  Size: SH
  13. Install the transmission control lever to the manual shaft with the nut.
  14. Tighten
    Tighten the control lever nut to 25 N·m (18 lb ft).

  15. Lower the vehicle.
  16. 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.