Lincoln F3VY-9275-A Fuel Tank Sender Assembly

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If you notice excess fuel consumption or a fuel smell without any external leaks, examine the engine oil for signs of fuel mixing. Look for an abnormally high oil level and a thinned-out consistency with a fuel odor.

Attach the fuel pressure gauge to the test port and activate the fuel pump without starting the engine. Note the fuel pressure and start the engine to measure the pressure while idling.

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.

Listen for a whirring sound at the fuel filler opening when turning the ignition key to the On position.

The fuel pump is located on the left side of the engine, on the timing chain cover.

Relieve the fuel system pressure, disconnect the battery cable, and raise the vehicle on jackstands. Disconnect the fuel pump harness electrical connector and fuel lines. Slide the fuel pump out of the retaining ring by bending down the retaining tab. If necessary, transfer the wiring harness and fittings to the new pump with new gaskets. Wrap the sound isolator around the fuel pump and slide it into the retaining ring, making sure the bracket tabs do not contact the fuel pump body. Bend the retaining ring tab up to secure it. Reconnect the fuel lines and harness electrical connector to the pump.