Fuel Pressure Regulator is located on the fuel rail.
Fuel Pressure Regulator
1. Disconnect the negative battery cable.
2. Properly relieve the fuel system pressure.
3. Remove the air cleaner outlet tube(s).
4. Remove any necessary components to access the pressure regulator.
5. Disconnect the vacuum hose from the pressure regulator.
6. Remove the pressure regulator attaching screws.
7. Remove the pressure regulator from the fuel rail.
To Install
8. Discard the O-rings on the pressure regulator and replace them with new ones.
9. Lubricate the O-rings with clean engine oil.
10. Install the regulator into the fuel rail and tighten the retaining screws.
11. Connect the vacuum hose to the regulator.
12. Install any components removed to access the regulator.
13. Install the air cleaner outlet tube(s).
14. Connect the negative battery cable.
regulates the fuel pressure.
where is the fuel pressure regulator on1991 lumina 3.1 /
where is the fuel pressure regulator located on my 2003 ford 5.4 f150 4x4 ???
Yes ( fordparts.com lists fuel injectors , pressure regulator etc. )
thank you
It is in the throttle body.
Follow the rail line that runs to the injectors. You will find the pressure regulator.
The fuel pressure regulator has one bolt holding it in place.l
In the throttle body.
You need to hook a fuel pressure gauge to it and adjust the regulator so that you have 9 to 13 LBS, of fuel pressure. No lower are higher.
Try replaceing the filter or the fuel pressure regulator.
A plugged up fuel filter, a faulty fuel pressure regulator or a faulty fuel pump.