Installation Procedure

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

Fig 1: Installing Coolant Air Bleed Hose
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
Courtesy of GENERAL MOTORS CORP.
Install the coolant air bleed pipe (2) and gaskets (3) onto the cylinder heads.
NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Install the coolant air bleed pipe studs (1).
Tighten

Tighten the coolant air bleed pipe 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).

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

Tighten

Tighten the coolant air bleed pipe cover bolts to 12 N.m (106 lb in).
Install the intake manifold. Refer to INTAKE MANIFOLD (5.7L) .