GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L 🢒 Glow Plug Replacement - Bank 1

Removal Procedure

    Object Number: 1335557 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Remove the right wheelhouse panel. Refer to Front Wheelhouse Liner Replacement - Right Side.
  3. Remove the engine wiring harness nut(s) from the glow plug(s).
  4. Remove the engine wiring harness lead(s) from the glow plug(s).
  5. Remove the glow plug(s) from the cylinder head.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1335557 Size: SH
  1. Install the glow plug(s) to the cylinder head.

    2. Tighten
    Tighten the plug to 18 N·m (13 lb ft).

  2. Install the engine wiring harness lead(s) to the glow plug(s).
  3. Install the engine wiring harness nut(s) to the glow plug(s).

    4. Tighten
    Tighten the nut to 1.7 N·m (15 lb in).

  4. Install the right wheelhouse panel. Refer to Front Wheelhouse Liner Replacement - Right Side.
  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.