GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 343699  Size: SH
  1. Remove the intake manifold sight shield, if necessary. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Remove the spark plug wire from the spark plug.
  3. • Twist each spark plug 1/2 turn.
    • Pull only on the boot in order to remove the wire from each spark plug.
  4. Remove the spark plug wire from the ignition coil.
  5. • Twist each spark plug boot 1/2 turn.
    • Pull only on the boot in order to remove the wires from the ignition coil.

Installation Procedure


    Object Number: 343699  Size: SH
  1. Install the spark plug wire to the ignition coil.
  2. Install the spark plug wire to the spark plug.
  3. Inspect the wires for proper installation:
  4. • Push sideways on each boot in order to inspect the seating.
    • Reinstall any loose boot.
  5. Install the intake manifold sight shield, if necessary. Refer to Upper Intake Manifold Sight Shield Replacement .