Fuel Pressure Regulator: Service and Repair

Fig. 20 Fuel Pressure Regulator:

FUEL PRESSURE REGULATOR
The fuel system uses a nonadjustable pressure regulator that maintains fuel system pressure at approximately 338 kPa (49 psi). The fuel pressure regulator contains a diaphragm, calibrated spring and a fuel return valve. The spring pushes down on the diaphragm and closes off the fuel return port.

System fuel pressure reflects the amount of fuel pressure required to open the return port.

The fuel pressure regulator is part of the fuel pump module Fig. 20. Remove the fuel pump module from the fuel tank for access to the fuel pressure regulator.

Fig. 20 Fuel Pressure Regulator:

NOTE: Remove the fuel pump module from the fuel tank for access to the fuel pressure regulator.

REMOVAL
1. Spread tangs on pressure regulator retainer Fig. 20.

Fig. 21 Fuel Pressure Regulator Removal:

2. Pry fuel pressure regulator out of housing Fig. 21.
3. Ensure both upper and lower 0-rings are removed from regulator housing and discarded.

Fig. 22 Fuel Pressure Regulator O-Rings:

INSTALLATION
1. Lightly lubricate the 0-rings with engine oil and place them into opening in regulator housing Fig. 22.
2. Push and rotate regulator into regulator housing.
3. Install new regulator retainer bracket making sure all 4 locking tabs snap into place.