Cadillac 19368772 Fuel Tank Fuel Pump Module KIT (W/O Fuel Lvl Sen)

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To check the fuel pump, sit in the vehicle with windows closed and turn ignition key to ON. Listen for pump sound as it pressurizes fuel system. If no sound, remove fuel filler cap and have assistant turn ignition switch to ON while you listen. Check fuse, relay, wiring, and replace pump if necessary. Connect fuel pressure gauge to test port on fuel feed line and start engine. Compare gauge reading to specifications. If pressure is low, check filter, lines, and hoses for issues. Replace fuel pump module if regulator is stuck open.

To remove the fuel pump/fuel level sending unit module, you need to remove the fuel tank and disconnect the EVAP vent line, fuel tank vent line fitting, and fuel supply line quick-connect fittings from the fuel pump/fuel level sending unit mounting flange. Then, using water pump pliers, unscrew the fuel pump/fuel level sending unit module lock ring and remove the pump assembly, taking care not to damage the fuel level sensor float arm and float.

Replace the fuel pump module, as a stuck open regulator will prevent the fuel system from reaching its normal operating pressure range.

Disconnect the electrical connector and wiring harness.

Before installing the fuel pump/fuel level sending unit module, you should inspect the o-ring and replace it if necessary.

Disconnect the electrical connector and wiring harness.

Before installing the fuel pump/fuel level sending unit module, you should inspect the o-ring and replace it if necessary.

Connect a fuel pressure gauge to the Schrader valve-type test port on the fuel feed line and start the engine. Note the gauge reading as soon as the pressure stabilizes and compare it with the pressure specifications.

Remove the sensor unit from the fuel pump module.