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Voltage to operate the fuel heater is supplied from the ignition (key) switch and through the fuel heater If the fuel heater element needs replacement, the plastic filter bowl assembly must be replaced. (Refer FUEL HEATER RELAY DESCRIPTION Voltage to operate the fuel heater is supplied from the ignition (key) switch through the fuel heater The fuel heater relay is located in the PDC. The PDC is located next to the battery in the engine com- DIAGNOSIS AND TESTING - FUEL HEATER The fuel heater relay is located in the Power Dis- tribution Center (PDC). Refer to Relays—Operation/ FUEL LEVEL SENDING UNIT / DESCRIPTION The fuel gauge sending unit is attached to the side of the fuel pump module. The sending unit consists of As the fuel level increases, the float and arm move up. This decreases the sending unit resistance, caus- REMOVAL The fuel level sensor is located on the side of the fuel pump module (Fig. 18). (1) Remove fuel tank. Refer to Fuel Tank Removal/ Installation. (2) Remove fuel pump module. Refer to Fuel Pump Module Removal/Installation. (3) Remove electrical wire connector at sending unit terminals. (4) Press on release tab (Fig. 19) to remove send- ing unit from pump module. Fig. 17 Fuel Heater Temperature Sensor and Element Location 1 - TERMINAL 2 Fig. 18 Fuel Level Sensor 1 - FUEL GAUGE FLOAT 14a - 10 FUEL DELIVERY R1 FUEL HEATER (Continued) |