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OPERATION Fuel is returned through the fuel pump module and back into the fuel tank through the fuel filter/fuel pressure reg- The fuel tank assembly consists of: the fuel tank, fuel pump module assembly, fuel pump module locknut/gasket, A fuel filler/vent tube assembly using a pressure/vacuum, 1/4 turn fuel filler cap is used. The fuel filler tube contains Also to be considered part of the fuel system is the evaporation control system. This is designed to reduce the Both fuel filters (at bottom of fuel pump module and within fuel pressure regulator) are designed for extended ser- STANDARD PROCEDURE - FUEL SYSTEM PRESSURE RELEASE Use following procedure if the fuel injector rail is, or is not equipped with a fuel pressure test port. 1. Remove fuel fill cap. 2. Remove fuel pump relay from Power Distribution Center (PDC). For location of relay, refer to label on underside of PDC cover. 3. Start and run engine until it stalls. 4. Attempt restarting engine until it will no longer run. 5. Turn ignition key to OFF position. CAUTION: Steps 1, 2, 3 and 4 must be performed to relieve high pressure fuel from within fuel rail. Do not 6. Unplug connector from any fuel injector. 7. Attach one end of a jumper wire with alligator clips (18 gauge or smaller) to either injector terminal. 8. Connect other end of jumper wire to positive side of battery. 14 - 4 FUEL DELIVERY - GAS DR/DH |