Cooling System Air Bleeder Pipe / Hose: Service and Repair

Coolant Air Bleed Pipe Assembly Replacement (With LH8)

Removal Procedure





1. If replacing the rear coolant air bleed covers, remove the intake manifold. Refer to Intake Manifold Replacement (Intake Manifold Replacement) . Otherwise proceed to the next step.
2. Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement (Service and Repair) .
3. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (Service and Repair)Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair) .
4. Reposition the radiator vent inlet hose clamp (1) at the coolant air bleed pipe fitting.
5. Remove the radiator vent inlet hose (2) from the coolant air bleed pipe fitting.




6. Remove the coolant air bleed pipe bolts (309) (intake manifold shown removed for clarity).
7. Remove the coolant air bleed pipe (307) and seals (308).




8. Remove the coolant air bleed cover bolts (312), if required.
9. Remove the coolant air bleed covers (313) and seals (308), if required.




10. Remove the seals (308) from the coolant air bleed pipe and/or covers.
11. Discard the seals.



Installation Procedure






Important: Position the O-ring seal (308) onto the nipple portion of the pipe.


1. Install the seals onto the coolant air bleed pipe and/or covers.




2. Install the coolant air bleed pipe (307) and seals (308) onto the cylinder heads.

Notice: Refer to Fastener Notice (Fastener Notice) .

3. Install the coolant air bleed pipe bolts (309).

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





4. Install the coolant air bleed covers (313) and seals (308), if required.
5. Install the coolant air bleed cover bolts (312), if required.

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





6. Install the radiator vent inlet hose (2) to the coolant air bleed pipe fitting.
7. Position the radiator vent inlet hose clamp (1) at the coolant air bleed pipe fitting.
8. Install the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement (Service and Repair) .
9. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (Service and Repair)Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair) .
10. If the rear coolant air bleed covers were replaced, install the intake manifold. Refer to Intake Manifold Replacement (Intake Manifold Replacement) .