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HOMESERVICE MANUALSSATURN2003ION 3 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 5 (AUTOMATIC TRANSMISSION - VT25-E)REPAIR INSTRUCTIONSPARK/NEUTRAL POSITION SWITCH REPLACEMENTREMOVAL PROCEDURE
2003 Saturn Ion 3 4D Sedan, Standard

Removal Procedure

2003 Saturn Ion 3 4D Sedan, StandardSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
  1. Shift the transmission into neutral.
  2. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.
  3. Disconnect the transmission control module connectors, noting proper orientation.
  4. Remove the bolt and disconnect the large engine control module connector (4).
  5. Disconnect the engine wiring harness retainer near the engine control module.
    Fig 1: Disconnecting Engine Control Module Connector
    G02126087Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the EVAP purge solenoid connector and lay wiring harness aside.
  7. Using the J 36346  or equivalent, remove the control cable assembly from the park/neutral position switch lever.
  8. Disconnect the park/neutral position switch harness connector.
    Fig 2: Removing Control Cable Assembly From Park/Neutral Position Switch Lever
    G02126088Courtesy of GENERAL MOTORS CORP.
  9. Remove the park/neutral position switch lever nut and lever.
    Fig 3: Removing Park/Neutral Position Switch Lever & Nut
    G02126089Courtesy of GENERAL MOTORS CORP.
  10. Remove the park/neutral position switch bolts.

    Important:  Ensure that the manual shaft is fully seated into the transmission.

  11. Remove the park/neutral position switch from the vehicle.
    Fig 4: Removing Park/Neutral Position Switch & Bolts
    G02126090Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.