GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Avalanche - 4WD 🢒 Engine 🢒 Engine Controls and Fuel - Hybrid (HP2) 6.0L (LFA) 🢒 Spark Plug Wire Replacement

Removal Procedure

    Object Number: 1707125 Size: SH
  1. If replacing the right side spark plug wire(s), remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side , and remove the right side plug wire(s) through the wheel opening.
  2. Remove the spark plug wire from the spark plug.
    3. 2.1. Twist the spark plug wire boot a 1/2 turn.
    2.2. Pull only on the boot in order to remove the wire from the spark plug.
  3. Remove the spark plug wire from the ignition coil.
    4. 3.1. Twist the spark plug wire boot a 1/2 turn.
    3.2. Pull only on the boot in order to remove the wire from the ignition coil.

Installation Procedure

    Object Number: 1707125 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 spark plug wire for proper installation:
    4. 3.1. Push sideways on each boot in order to inspect the seating.
    3.2. Reinstall any loose boot.
  4. If the right side spark plug wire(s) was replaced, install the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side .