GM 19369929 MODULE KIT,F/TNK F/PMP

You can Select Your Vehicle to check if 19369929 fits your vehicle.

To remove the fuel pump/sending unit assembly, start by relieving the fuel system pressure and disconnecting the cable from the negative battery terminal. Then, remove the fuel tank and carefully tap the locking cam until the tabs align with the recesses to release the assembly. Lift the assembly from the fuel tank, transferring any necessary components to the new fuel pump module assembly. For 1995 and earlier models, remove the strainer from the lower end of the fuel pump and clean or replace it as needed. Disconnect the electrical connector and separate the fuel pump from the assembly. To install, reassemble the fuel pump to the sending unit bracket assembly and insert the assembly back into the fuel tank. Finally, install the fuel tank.

To check the fuel pump output and pressure, first ensure that there is enough fuel in the tank and relieve the fuel pressure. Then, install a fuel pressure gauge on the fuel rail, with the location varying depending on the type of system. Turn the ignition switch on without starting the engine and note the reading on the gauge as the fuel pump runs for about two seconds. The pressure should hold steady within the specified range. Start the engine and let it idle at normal operating temperature, with the pressure expected to be lower by 3 to 10 psi. If all pressure readings are within the limits, the system is operating properly. If the pressure does not drop as expected, apply vacuum to the pressure regulator and if it drops, repair the vacuum source or replace the regulator. If the pressure is not within specifications, check for a vacuum to the regulator or a pinched/clogged fuel return hose. If the pressure is still low, change the fuel filter and if it remains low, install a fuel line shut-off adapter to test the regulator. If the pressure is still low with the return line restricted, there may be a leaking injector or a faulty fuel pump. After testing, relieve the fuel pressure and remove the gauge. To check the fuel pump's electrical circuits, verify that the pump runs by listening for a whirring noise when the ignition switch is turned on and when the engine is started. Check the fuel pump fuse and the fuel pump relay circuit, ensuring there is battery voltage at the relay connector. Replace the relay if necessary and check for power to the fuel pump at the tank.

The fuel pump should be reassembled to the sending unit bracket assembly and then inserted back into the fuel tank.

Check the pressure, which is expected to be lower by 3 to 10 psi.