FAQ for Fuel Pressure Regulator Repair
Q: What functions does the fuel rail assembly have?
A:
The fuel rail assembly positions the injectors in the intake manifold distributes fuel evenly to the injectors and integrates the fuel pressure regulator into the fuel metering system.
By BobGM Specialist
01/11/2022 Q: What should be done before servicing the Fuel Rail Assembly?
A:
Relieve the fuel system pressure.
By BobGM Specialist
01/11/2022 Q: What is the recommended torque for the fuel rail studs?
A:
The recommended torque is 10 N.m (89 lb in).
By BobGM Specialist
01/11/2022 Q: What is the recommended torque for the fuel pressure regulator retaining bolts?
A:
The recommended torque is 5 N.m (44 lb in).
By BobGM Specialist
29/10/2022 Q: What should be done before servicing the Fuel Pressure Regulator?
A:
Relieve the fuel system pressure.
By BobGM Specialist
29/10/2022 Q: What kind of special tool will I need when relieving the Fuel Pressure?
A:
You will need a fuel pressure gauge.
By BobGM Specialist
29/10/2022 Q: What is the fuel pressure regulator?
A:
The fuel pressure regulator is a diaphragm relief valve. The diaphragm has fuel pressure on one side and regulator spring pressure on the other side. Fuel pressure is controlled by a pressure balance across the regulator. The fuel system pressure is constant. A software bias compensates the injector on time based on the signal from the MAP sensor.
By BobGM Specialist
29/10/2022 See more FAQs (2)