Engine Coolant Air Bleed Pipe Replacement for Pontiac G8 2009

Note: Removal of the intake manifold is NOT required to service the coolant air bleed pipe, but is required to service the coolant air bleed pipe covers and/or gaskets.

1. Drain a gallon of coolant. Refer to Cooling System Draining and Filling.
2. Remove the throttle air body assembly. Refer to Throttle Body Assembly Replacement.
3. Remove the coolant air bleed hose (4).
4. Remove the coolant air bleed pipe mounting bolts (3).
5. Remove the coolant air bleed pipe (1) and O-rings (2).

1. Position the coolant air bleed pipe (1) and O-rings (2) on the cylinder heads.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the mounting bolts (3) for the coolant air bleed pipe (1) and tighten to 12 N·m (106 lb in).
3. Install the coolant air bleed hose (4).
4. Install the throttle air body assembly. Refer to Throttle Body Assembly Replacement.
5. Fill the cooling system. Refer to Cooling System Draining and Filling.