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  • P0461 Fuel Level Unit No Change Over Time

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    Mopar1973Man

    P0461 FUEL LEVEL UNIT NO CHANGE OVER TIME

    When Monitored and Set Condition:

    When Monitored: While the engine is running.
    Set Condition: Fuel level does not change by a calibrated amount over a calibrated amount of time.

    POSSIBLE CAUSES

    • EXTERNAL DAMAGE TO FUEL TANK
    • FUEL LEVEL SENSOR
    • FUEL LEVEL SENSOR
    • INSIDE OF FUEL TANK OBSTRUCTED DAMAGED
    • INTERMITTENT CONDITION

    DIAGNOSTIC PROCEDURE

    1. Visually inspect the fuel tank for external damage. Is the fuel tank damaged from the outside?
      Yes --> Fix or replace the fuel tank. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
      No --> Go To 2
    2. Disconnect the wiring harness from the fuel level sensor. Check connectors - Clean/repair as necessary. Remove the fuel level sensor from the fuel tank. Does the fuel level float move freely?
      Yes --> Go To 3
      No --> Replace the fuel level sensor. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
    3. Measure the resistance between the sensor (G8) signal circuit and (K4) return circuit while moving the sensor float arm. Does the resistance level change as you move the sensor arm?
      Yes --> Go To 4
      No --> Replace the fuel level sensor. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
    4. Visually inspect the inside of the fuel tank for obstructions. Is the inside of the fuel tank damaged or obstructing the fuel level sensor?
      Yes --> Test Complete.
      No --> Replace the fuel tank. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).

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