GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Engine Coolant Air Bleed Pipe Installation

    Object Number: 1552485 Size: SH

    Important: 

       • Install the pipe seals properly onto the pipe and covers.
       • Position the O-ring seal onto the nipple portion of the pipe.

  1. Install the seals (308) onto the engine coolant air bleed pipe and covers.

    2. Object Number: 1277123 Size: SH
  2. Install the pipe (307) and seals (308) onto the cylinder heads.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the pipe bolts (309).

    4. Tighten
    Tighten the pipe bolts to 12 N·m (106 lb in).


    Object Number: 1272806 Size: SH
  4. Install the covers (313), seals (308), and bolts (312) onto the rear of the engine.

    5. Tighten
    Tighten the cover bolts to 12 N·m (106 lb in).


    Object Number: 1277104 Size: SH
  5. Install the hose (311) and clamps (310) onto the pipe (307).