The in-tank fuel pump module contains the fuel pump and pressure
regulator which adjusts fuel system pressure to approximately 49 psi.
(338kPa). Voltage to the fuel pump is supplied through the fuel pump
The fuel pump is serviced as part of the fuel pump module.
The fuel pump module is installed in the top of the fuel tank and
contains the electric fuel pump, fuel pump reservoir, inlet strainer,
fuel gauge sending unit, fuel supply line and pressure regulator. The
inlet strainer, fuel pressure regulator and level sensor are the only
serviceable items. If the fuel pump requires service, replace the fuel
pump module, using the following procedure:
Remove the fuel filler cap and properly relieve the fuel system pressure.
Disconnect the negative battery cable.
Remove the fuel tank assembly from the vehicle.
Clean the top of the tank to remove any loose dirt.
- Using special tool No. 6856 or equivalent, remove the fuel pump locknut by turning it counterclockwise.
Remove the fuel pump and O-ring from the tank. Discard the O-ring.
Thoroughly clean all parts. Wipe the seal area of the tank clean. Place a new O-ring in position on the pump module.
While holding the fuel pump module in place install the locking
ring and tighten to 43 ft. lbs. (58 Nm) using special tool No. 6856 or
equivalent spanner-type tool.
Install the fuel tank assembly.
Reconnect the negative battery cable.
Fill the fuel tank with fuel. Install the fuel filler cap. Turn the ignition switch to the
position to pressurize the system. Check the fuel system for leaks.
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