Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMITSUBISHI2004GALANT V6-3.8L (6G75)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSFUEL LEVEL SENSORTESTING AND INSPECTION
2004 Mitsubishi Galant V6-3.8L (6G75)
Fuel Level Sensor: Testing and Inspection
2004 Mitsubishi Galant V6-3.8L (6G75)SECTION Testing and Inspection
FUEL LEVEL SENSOR CHECK
1. Remove the rear seat cushion assembly. (Refer to Rear Seat Assembly.)
2. Remove hole cover and remove the fuel pump module and fuel level sensor (sub).
Tightening torque: 1.5 ± 0.5 Nm (14 ± 0.5 in-lb)
FUEL LEVEL SENSOR RESISTANCE
1. Check the resistances between fuel level sensor main terminals 1 and 2 as well as sub terminals 1 and 2 of the fuel pump module, respectively.
2. Check that resistance value changes smoothly when the float moves slowly between points.
3. If all checks are correct, go to fuel unit height check. If any check is not correct, replace the fuel pump module or fuel level sensor (sub).
FUEL LEVEL SENSOR FLOAT HEIGHT
1. Move the float and measure height A at point "F" (highest) and B at point "E" (lowest).
2. If any check is not correct, replace the fuel pump module or fuel level sensor (sub).
1. Remove the rear seat cushion assembly. (Refer to Rear Seat Assembly.)
2. Remove hole cover and remove the fuel pump module and fuel level sensor (sub).
Tightening torque: 1.5 ± 0.5 Nm (14 ± 0.5 in-lb)
FUEL LEVEL SENSOR RESISTANCE
1. Check the resistances between fuel level sensor main terminals 1 and 2 as well as sub terminals 1 and 2 of the fuel pump module, respectively.
2. Check that resistance value changes smoothly when the float moves slowly between points.
3. If all checks are correct, go to fuel unit height check. If any check is not correct, replace the fuel pump module or fuel level sensor (sub).
FUEL LEVEL SENSOR FLOAT HEIGHT
1. Move the float and measure height A at point "F" (highest) and B at point "E" (lowest).
2. If any check is not correct, replace the fuel pump module or fuel level sensor (sub).
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.