Vacuum Check Valve HVAC: Service and Repair

VACUUM CHECK VALVE

REMOVAL

NOTE: Note the orientation of the check valves in the vacuum supply line for correct reinstallation.

Vacuum Check Valves - Typical:

1. Disconnect the vacuum check valve from the fitting at the engine intake manifold and the accessory vacuum supply line and remove the valve.
2. Disconnect the vacuum check valve from the HVAC vacuum supply line fitting and the accessory vacuum supply line and remove the valve.

INSTALLATION
1. Using the orientation noted during Removal, connect the vacuum check valve to the HVAC vacuum supply line fitting and the accessory vacuum supply line.
2. Using the orientation noted during Removal, connect the vacuum check valve to the fitting at the engine intake manifold and the accessory vacuum supply line.