Express 4500 V8-6.0L (2010)
Vacuum Pump HVAC: Service and Repair
Heater and Air Conditioning Control Vacuum Pump Replacement
Heater and Air Conditioning Control Vacuum Pump Replacement
Removal Procedure
1. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine
Performance Checks/Air Cleaner Housing/Service and Repair) for the 4.3L engine, or Air Cleaner Assembly Replacement (See: Engine, Cooling
and Exhaust/Engine/Tune-up and Engine Performance Checks/Air Cleaner Housing/Service and Repair) for the 4.8L, 5.3L, 6.0L, 6.2L and 7.0L
engine, or Air Cleaner Assembly Replacement (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Air Cleaner
Housing/Service and Repair) for the 6.6L engine.
2. Disconnect the vacuum pump electrical connector.
3. Disconnect the vacuum hose from the vacuum pump.
4. Remove the vacuum pump retaining bolts.
5. Remove the vacuum pump from the vehicle.
Installation Procedure
