Colorado 2WD V8-5.3L (2009)
Coolant Line/Hose: Service and Repair
Engine Coolant Air Bleed Pipe Replacement (With LH8) (5.3L)
Removal Procedure
1. If replacing the rear coolant air bleed covers, remove the intake manifold. Refer to Intake Manifold Replacement (See: Engine/Intake
Manifold/Service and Repair). Otherwise proceed to the next step.
2. Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement (See: Engine/Tune-up and Engine Performance
Checks/Air Cleaner Housing/Air Cleaner Fresh Air Duct/Hose/Service and Repair).
3. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (See: Service and Repair)Cooling System Draining and
Filling (Vac N Fill) (See: 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).