Vacuum Check Valve HVAC: Service and Repair

REMOVAL
1. Unplug the HVAC vacuum supply line connector at the vacuum check valve near the engine intake manifold vacuum adapter fitting.
2. Note the orientation of the check valve in the vacuum supply line for correct installation.
3. Unplug the vacuum check valve from the vacuum supply line fittings.

INSTALLATION
1. Plug in the vacuum check valve at the vacuum supply line fittings, noting the orientation of the check valve in the vacuum supply line for correct installation.
2. Plug in the HVAC vacuum supply line connector at the vacuum check valve near the engine intake manifold vacuum adapter fitting.