There is a factory service bulletin for the following Ford Models:
2003-2004 Ford Crown Victoria
2003-2004 Ford Crown Victoria Factory Service Bulletin OBDII Code P0460
For some Ford vehicles.
SERVICE PROCEDURE
P0460 can be caused by the installation of aftermarket equipment such as remote starter systems and auxiliary fuel tanks.
Ford offers a remote starter system which is recommended. If the vehicle has an aftermarket remote starter system, it would need to be removed/disabled before diagnostics for P0460 can be started. Auxiliary fuel tanks that continuously replenish the vehicle's main tank will cause a P0460. Customers that replenish the vehicle's fuel tank from the auxiliary fuel tank while the key is on and the engine is running, can set P0460. For vehicles with an auxiliary fuel tank, it is recommended not to use the gravity / continuous fill style auxiliary fuel tanks. It is recommended to add fuel to the vehicles in the main tank with the key off.
NOTE: P0460 CAUSED BY AFTERMARKET EQUIPMENT/VEHICLE MODIFICATIONS IS NOT COVERED UNDER WARRANTY.
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P0460 Ford code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
The fuel level sensor is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the Engine Control Module (ECM). The fuel level sensor consists of two parts, one is mechanical float and the other side is a variable resistor. The fuel level sensor output voltage changes depending on the movement of the fuel mechanical float. The Diagnostic Trouble Code (DTC) will set when, even though the vehicle is parked, a signal being varied is sent from the fuel level sensor to the Engine Control Module.
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