Lincoln BT4Z-9H307-C Sender And Pump Assembly

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Before setting the pump in the housing, a new O-ring should be installed and clean oil should be applied to the pump tappet and O-ring.

In AWD models, there is a fuel level sending unit mounted on the fuel pump module in the driver's side of the fuel tank, and a separate fuel level sensor in the passenger's side of the fuel tank.

To remove the fuel pump module, the fuel system pressure must be relieved and the negative battery cable disconnected. The fuel tank is then removed, followed by the removal of the pump module lock ring. The fuel pump module is carefully pulled out of the tank to disconnect the fuel vapor hose quick-connect fitting. The O-ring should be inspected and replaced if necessary.

Before installing the fuel injection pump, the pump tappet should be checked for wear or damage.