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Home >> Chevrolet >> 2005 >> Classic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Introduction & Repair Instructions >> Repair Instructions >> Park/Neutral Position (PNP) Switch Replacement >> Installation Procedure (Using New Switch)

Installation Procedure (Using New Switch)

  1. Place the shift shaft in the N (Neutral) position.
  2. Align the flats of the shift shaft to the flats in the park/neutral switch.
  3. Fig 1: View Of Park/Neutral Position Switch Assembly
    GM104616Courtesy of GENERAL MOTORS CORP.
  4. Install the park/neutral position switch assembly.
  5. Fig 2: View Of Park/Neutral Position Switch Mounting Bolts
    GM104615Courtesy of GENERAL MOTORS CORP.
  6. Install the park/neutral position switch mounting bolts.

    Tighten:  Tighten the bolts to 24 N.m (18 lb ft).

  7. Align the holes with the mounting boss on the transmission. Place the shift control lever in the N (Neutral) position. Do not rotate the switch. The switch is pinned in the N (Neutral) position. If the switch has been rotated and the pin is broken, adjust the switch. Refer to the using old switch installation procedures.
  8. IMPORTANT: Ensure that the engine will only start in P (Park) or N (Neutral). Readjust the switch if the engine will start in any other position. Refer to the using old switch installation procedures.
  9. Connect the negative battery cable.
  10. Place the transmission control shifter assembly in the N (Neutral) notch in the detent plate.
  11. Loosen the park/neutral position switch attaching bolts.
  12. Rotate the switch on the shifter assembly in order to align the service adjustment hole with the carrier tang hole.
  13. Insert a 2.34 mm (3/32 in) maximum diameter gage pin to a depth of 9.0 mm (9/64 in).

    Tighten:  Tighten the bolts to 24 N.m (18 lb ft).