Ford FOVY-9275-A Fuel Tank Sender Assembly

Unbolt the fuel tank straps and lower the tank partially. Disconnect the fuel lines and electrical connector from the fuel pump assembly, and remove the assembly from the tank by tapping the locking ring counterclockwise. Replace the old lock ring gasket and clean or install the new strainer if necessary. Separate the fuel pump from the assembly by removing the clamp and disconnecting the electrical connector. Clean the mounting surfaces and seal ring groove before installing the new pump.

For models with a digital instrument cluster, you can perform a similar test using a voltmeter or test light and a 15-ohm resistor. Remove the resistor and use a 150-ohm resistor to check the gauge response.

Carefully unscrew the fuel line fittings and detach the lines from the pump using a flare-nut wrench and a back-up wrench on the pressure-side fitting.

If there's no sound, check the fuel pump fuse, relay, and circuit. Also, check for battery voltage to the fuel pump relay connector and power relay connector. If there's no voltage, inspect the fuses and wiring circuit.

To test the fuel pressure, disconnect the fuel line from the carburetor and install a T-fitting. Connect a fuel pressure gauge to the T-fitting using a section of fuel hose. Start the engine and let it idle, ensuring that the pressure on the gauge remains constant and returns to zero slowly when the engine is turned off.