Except Optima & Magentis (Canadian)

To release fuel pressure, remove rear seat cushion. Locate access to fuel pump harness connector. Disconnect fuel pump harness connector. Start engine and allow to idle until it stalls. Turn ignition off. Disconnect negative battery cable. When testing or repair is complete, reconnect fuel pump connector and negative battery cable. Install rear seat cushion. Prime fuel system. See PRIMING FUEL SYSTEM .