Chevrolet 88965815 Fuel Tank Fuel Pump Module Kit

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The first step is to ensure there are no fuel line leaks and that there is an adequate fuel supply in the tank.

Relieve the fuel system pressure. Disconnect the cable from the negative battery terminal. Remove the fuel tank from the vehicle. Disconnect the fuel lines and EVAP line from the fuel pump module. Rotate the fuel pump module retaining ring counterclockwise until it's loose. A special tool (J45722) is useful for this operation. Note: Some module retaining rings may be marked "Do Not Reuse," but the manufacturer says that the rings may be reused as long as they are not corroded, bent or otherwise damaged. Remove the fuel pump module from the tank and drain the fuel from the reservoir. Angle the assembly slightly to avoid damaging the fuel level sending unit float. The electric fuel pump is not serviced separately. In the event of failure, the complete assembly must be replaced. Transfer the fuel pressure sensor and fuel level sending unit to the new fuel pump module assembly, if necessary. Clean the fuel tank sealing surface and install a new seal on the fuel pump module. Install the fuel pump module, aligning the fuel line fittings with the fuel lines. Press the fuel pump module down until seated and install the retaining ring. Make sure the retaining ring is fully seated and the locking tab is engaged with the slot. The remainder of installation is the reverse of removal.

Listen for the fuel pump's whirring sound when an assistant turns the ignition switch to the ON position. If no sound is heard, it may indicate a problem with the fuel pump.