GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Uplander Ext. 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Spark Plug Wire Replacement

Removal Procedure

    Caution: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.


    Object Number: 1582091 Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Disconnect the left side spark plug wires from the spark plugs.
  3. Disconnect the left side spark plug wires from the ignition coil.
  4. If replacing only one plug wire, open the retaining clips and remove the spark plug wire.
  5. Remove the left side spark plug wire clips from the intake manifold bracket and heater inlet and outlet pipe.
  6. Remove the spark plug wire assembly.

    7. Object Number: 1582938 Size: SH
  7. Rotate the engine for access to the back of the engine. Refer to Rotating the Engine for Service Access .
  8. Disconnect the left side spark plug wires from the spark plugs.
  9. Disconnect the right side spark plug wires from the ignition coil.
  10. If replacing only one plug wire, open the retaining clips and remove the spark plug wire.
  11. Remove the right side spark plug wire clip from the ignition coil bracket.
  12. Remove the spark plug wire assembly.

Installation Procedure

    Object Number: 1582938 Size: SH
  1. Install the spark plug wire assembly.
  2. Install the right side spark plug wire clip at the ignition coil bracket.
  3. If only one plug wire was replaced, install the plug wire and close the retaining clip.
  4. Connect the right side spark plug wires to the ignition coil.
  5. Connect the right side spark plug wires to the right side spark plugs.
  6. Rotate the engine back to the original position. Refer to Rotating the Engine for Service Access .

    7. Object Number: 1582091 Size: SH
  7. Install the spark plug wire assembly.
  8. Install the left side spark plug wire clips at the intake manifold bracket and heater inlet and outlet pipe.
  9. If only one plug wire was replaced, install the plug wire and close the retaining clips.
  10. Connect the left side spark plug wires to the ignition coil.
  11. Connect the left side spark plug wires to the spark plugs.
  12. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .