P0463 Diagnostic Trouble Code Discussion for July 2026
Fuel Level Sensor High Voltage
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| Help Request | Posted | |
| 2004 Mercury Grand Marquis GS 4.6L MIL Lamp on VIN: 2MEFM74WX4 P0463: fuel level Sensor circuit high volts. Fuel level shows empty on gauge all the time. Currently fuel tank is 1/2 full. We replaced the fuel pump module because fuel was leaking from the the connection at fuel pump output where it connects into the fuel line. We thought we were "killing 2 bir... |
July 29, 2026 |
