Sonata V6-3.0L (1991)
Fuel Pressure Regulator: Service and Repair
Fuel Pressure Regulator Location
REMOVAL
1.
Reduce the internal pressure of the fuel pipes and hoses by completing the following operations:
Electric Fuel Pump And Fuel Gauge Connectors
a.
Disconnect the fuel pump harness connector at the rear of the fuel tank.
b.
Start and run the engine until it stalls, then turn the ignition switch to OFF.
c.
Disconnect the battery negative terminal.
d.
Connect the fuel pump harness connector.
2.
Remove the fuel return line from the pressure regulator.
3.
Remove the mounting bolts, then remove the fuel pressure regulator.
INSTALLATION
1.
When connecting the fuel pressure regulator to the fuel rail, apply light oil or fuel to the O-ring and then insert, being careful not to damage the
O-ring.
2.
After replacement of the fuel rail and injectors, check for leaks with the system pressurized.