Cadillac 19121306 Fuel Tank Meter/Pump SENSOR KIT

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To check the fuel level sensor, start by removing the fuel tank and the fuel level sensor or fuel pump module. Connect the probes of an ohmmeter to the fuel level sensor terminals of the fuel pump electrical connector. Position the float in the down position and note the reading on the ohmmeter. Move the float up to the full position and observe the meter. If the fuel level sensor resistance does not change smoothly as the float travels from empty to full, it needs to be replaced. For 1988 through 1996 models, remove the fuel tank and the fuel pump/fuel level sensor. Disconnect the sensor harness connector and remove the sensor mounting screws. Separate the sensor from the frame of the fuel pump/sensor assembly. Installation is the reverse of removal. For 1997 through 2000 models, remove the fuel tank and the fuel pump module. Disconnect the fuel level sensor electrical connector from the module cover and remove the sensor retaining clip. Pinch the tabs together and slide the fuel level sensor off the module, noting the wiring routing for installation. Installation is the reverse of removal.

Start by removing the fuel tank and the fuel level sending unit or fuel pump module. Connect the probes of an ohmmeter to the fuel level sensor terminals of the fuel pump electrical connector. Position the float in the down position and note the reading on the ohmmeter. Move the float up to the full position and observe the meter. If the fuel level sending unit resistance does not change smoothly as the float travels from empty to full, it needs to be replaced.