Air Relief Valve
WARNING: This page is about a different car, the 1995 Mazda RX-7. However, it is still accessible from the selected car via links, so may be relevant.
- Warm engine to normal operating temperature. Disconnect hose from air relief valve. Ensure no air flows from hose. If air flows from hose, air relief valve may be stuck open.
- Disconnect electrical connector from relief valve solenoid No. 1. See Figure . Using jumper wires, energize solenoid. If air flows from air relief valve, air relief valve and relief valve solenoid No. 1 are okay. If air does not flow from air relief valve, check vacuum routing, relief valve solenoid No. 1, air pump and air control valve.