Installation Procedure

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

Fig 1: Installing Coolant Air Bleed Hose Onto Pipe
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 2: Installing Gaskets Onto Coolant Air Bleed Pipe And Covers
Courtesy of GENERAL MOTORS CORP.
Install the coolant air bleed pipe (2) and gaskets (3) onto the cylinder heads.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the coolant air bleed pipe studs (1).
Tighten

Tighten the studs to 12 N.m (106 lb in).

Fig 3: Installing Coolant Air Bleed Pipe Studs
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).
Install the intake manifold. Refer to INTAKE MANIFOLD REPLACEMENT on page in Engine Mechanical - 4.8L, 5.3L, and 6.0L.

Fig 4: Installing Coolant Air Bleed Pipe Covers And Bolts
Courtesy of GENERAL MOTORS CORP.