Lift up your vehicle and put it on jackstands. Cut the power supply to the Fuel Level Sensor before taking it apart. Place the ohmmeteron the fuel connector and check resistance with the scale labeled 200.0 ohms. When the
Fuel Tank is full, reading should be around 160.0 ohms, while with only a little gas remaining, it should read around 15.0 ohms. If you get wrong readings, you need to replace the fuel level sending unit. To get an exact resistance reading, take the sending unit out of the fuel tank, move the float arm yourself, and measure how the resistance changes between "empty" and "full". Before getting a new sending unit, loosen the fuel tank bolts and easily pull out the
Fuel Pump assembly. To take out the unit, turn it at the right angle and carefully guide it from the opening so the float stays safe. Then undo the bolt and connect the wiring ends, the reverse process of installation, with a fresh gasket on top.