GM 42706338 Fuel Tank Fuel Pump Module Kit (W/O Fuel Level Sensor)

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To remove the Fuel Pressure Sensor, start by removing the oil filler cap and engine cover fasteners. Lift the engine cover and valve cover insulator off of the valve cover and reinstall the oil filler cap. Relieve the fuel system pressure and disconnect the cable from the negative battery remote terminal. Disconnect the Fuel Pressure Sensor electrical connector and unscrew and remove the sensor from the fuel rail. Clean the threads in the fuel rail and apply a drop of oil on the new sensor threads before installing it. Remove the sensor again, apply another drop of clean engine oil on the threads, and reinstall it. Connect the sensor electrical connector and reverse the removal process. To remove the high-pressure fuel pump, start by removing the charge air cooler outlet hose. Disconnect the harness connector to the fuel rail and the harness connector from the camshaft position sensor. Unclip the wiring harness retainers and move the harness and connectors out of the way. Remove the sound insulator around the pump body. Unscrew the intermediate high-pressure line fittings between the fuel rail and fuel pump and remove the fuel line bracket bolt. Remove the wiring harness bracket mounting bolts and move the bracket out of the way. Disconnect the electrical connector from the high-pressure fuel pump and disconnect the low-pressure feed line quick-connector at the pump. Remove the low-pressure fuel feed line. Remove the high-pressure fuel pump bolts and remove the pump, gasket, and lifter follower. Lubricate the lifter follower with clean engine oil and install it into the bore in the cylinder head. Install the alignment gauge and rotate the engine until the gauge sits flush with the cylinder head. Remove the alignment gauge and, if necessary, the valve lifter follower. Lubricate the pump valve lifter follower with engine oil and insert it into the bore. Set the pump into position on the bore using a new O-ring gasket and tighten the bolts evenly. The remainder of the installation is the reverse of the removal process. Reconnect the cable to the negative battery remote terminal, start the engine, and check for fuel leaks.

If you can't hear the pump, you can remove the fuel filler cap, depress the spring-loaded door inside the fuel filler neck, and have an assistant turn the ignition switch to ON while you listen for the pump operating for a couple of seconds.

Remove the fuel tank.