GM Service Manual Online
For 1990-2009 cars only

Spark Plug Wire Harness Replacement 1.0L

Removal Procedure

    Important: Note the correct routing of the wires prior to removal in order to maintain the correct engine firing order. Incorrect routing to the distributor cap will cause an engine misfire. Incorrect routing, or incorrect clearance to engine parts may cause an engine misfire or damage to the wires.

  1. Carefully remove the spark plug wires from the wire retainers.
  2. Important: Do not pull on the spark plug wire. Internal damage may result.

  3. Grasp the spark plug wire boot (2) and twist 1 half turn in each direction in order to release the boot.

  4. Object Number: 185652  Size: SH
  5. Remove the spark plug wires from the spark plugs .
  6. Remove the spark plug and the coil wires from the distributor cap.
  7. Remove the coil wire from the ignition coil.

Installation Procedure


    Object Number: 185652  Size: SH
  1. Install the coil wire to ignition coil.
  2. Install the spark plug and the coil wires to the distributor cap.
  3. Route the spark plug wires as previously noted and carefully insert them into the secondary wire retainers.
  4. Connect the spark plug wires (1) to the spark plugs.

Spark Plug Wire Harness Replacement 1.3L

Removal Procedure


    Object Number: 243238  Size: SH

    Important: Note the correct routing of the wires prior to removal. Incorrect routing may cause the engine to misfire and/or damage to the wires.

  1. Carefully release the number 1 spark plug wire from the clip on the number 2-3 ignition coil.
  2. Important: Do not pull on the spark plug wire. Internal damage may result.

  3. Grasp the spark plug boot and twist 1 half turn in each direction in order to release the boot.
  4. Remove the spark plug wire from the number 1 spark plug and the number 1-4 ignition coil.
  5. Remove the spark plug wire from the number 3 spark plug and the number 2-3 ignition coil.

Installation Procedure


    Object Number: 243238  Size: SH
  1. Install the spark plug wire to the number 3 spark plug and the number 2-3 ignition coil.
  2. Install the spark plug wire to the number 1 spark plug and the number 1-4 ignition coil.
  3. Carefully secure the number 1 spark plug wire in the clip on the number 2-3 ignition coil.