Installation Procedure

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Fig 1: Coolant Air Bleed Hose & Pipe

Courtesy of GENERAL MOTORS CORP.

Install the coolant air bleed hose (1) onto the pipe (2).

Fig 2: View Of Air Bleed Pipe Sealing Gasket

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Install the gaskets properly onto the pipe and covers. Position the O-ring seal onto the nipple portion of the pipe.

Install the gaskets onto the coolant air bleed pipe and covers.

Fig 3: Identifying Coolant Air Bleed Pipe And Bolts

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the coolant air bleed pipe (2) and gaskets (3) onto the cylinder heads.
Install the coolant air bleed pipe studs (1).
Tighten: Tighten the studs to 12 N.m (106 lb in).

Fig 4: View Of Coolant Air Bleed Pipe Covers & Bolts (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Install the coolant air bleed pipe covers (2) and bolts (1).
Tighten: Tighten the bolts to 12 N.m (106 lb in).
Fill the cooling system. Refer to Draining and Filling Cooling System .