Fuel Level Sending Unit Sensor

2008 Jeep Commander Overland, 4WDSECTION Fuel Level Sending Unit Sensor
Fig 1: Fuel Pump Module Pigtail Harness
GC0044898Courtesy of CHRYSLER LLC
  1. Raise vehicle.
    NOTE: A one-way check-valve is located within the fuel fill fitting on the fuel tank. Consequently, the tank can't be drained through the fuel fill hose. To drain diesel fuel from tank, disconnect fuel line at fuel filter/water separator. Use a diagnostic scan tool to activate the electric fuel pump. Drain diesel fuel into an approved storage/holding tank.
  2. Disconnect pump module electrical pigtail connector (1) from body wiring harness connector (2). See Figure.
    Fig 2: Fuel Lines - Front
    GC0044899Courtesy of CHRYSLER LLC
  3. Disconnect fuel line connectors (1) and (2) at front of tank (3). See STANDARD PROCEDURE .
    Fig 3: Fuel Lines - Rear
    GC0044900Courtesy of CHRYSLER LLC
  4. Disconnect fuel vent connectors (1) and (5) at rear of tank. See STANDARD PROCEDURE .
  5. Loosen clamp (4) and disconnect rubber fill hose (2) at tank fitting (3).
  6. Support tank with a hydraulic jack.
    Fig 4: Fuel Tank Mounting
    GC0027829Courtesy of CHRYSLER LLC
  7. Remove bolts (1) and (2) at right side of fuel tank. See Figure.
  8. Remove bolts (3) at left side of fuel tank.
  9. Lower tank for removal.
  10. If fuel tank is to be replaced, remove fuel pump module from tank. See REMOVAL .
  11. Remove fuel sending unit from module.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.