Ford Ranger Maintaince And Repair Manual page 638

Inspect the regulator O−ring seal and replace it if needed. A small pick will aid in removing the
To install:
6. Clean the gasket mating surfaces. If scraping is necessary, be careful not to damage the fuel pressure
regulator or supply line gasket mating surfaces.
7. Lubricate the pressure regulator O−ring with light engine oil. Do not use silicone grease; it will clog
the injectors.
8. Install the O−ring and a new gasket on the pressure regulator.
9. Install the pressure regulator on the fuel manifold and tighten the retaining screws to 27−40 inch lbs.
(3−4 Nm) for all engines except the 4.0L (VIN X) engine, which is tightened to 70−97 inch lbs. (8−11
Nm).
On the 2.3L and 2.5L engine, install the fuel manifold shield and tighten the bolts to 15−3 ft. lbs. (1−30
Nm).
10. Install the vacuum line at the pressure regulator.
11. If removed, connect the fuel return line.
12. Build fuel pressure in the system by turning the ignition ONand OFF(without starting the engine) at
least five times. Leave the ignition ONat least 5 seconds each time. Check for fuel leaks.
4.0L SOHC (VIN E) Engine
On the 4.0L SOHC (VIN E) engine, the fuel pressure regulator is integral with the supply and return
lines that are routed on the engine.
1. Depressurize the fuel system; remove shielding as needed.
2. Remove the upper intake manifold.
3. Disconnect the fuel pressure regulator vacuum line.
4. Disconnect the fuel supply and return lines.
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HOW TO USE THIS BOOK
old seal
REMOVAL & INSTALLATION