Hombre S Regular Cab 4WD V6-4.3L (1999)
Installation Procedure
Important: If the fuel pressure regulator is to be reinstalled, inspect the filter screen for contamination. If the filter screen is contaminated, replace the
regulator.
1. Lubricate the new O-rings with clean engine oil.
2. Install the regulator seal backup ring (15).
3. Install the regulator seal upper O-ring (16).
4. Install the regulator assembly filter (17).
5. Install the regulator seal lower O-ring (18).
6. Assemble the regulator with the vacuum tube pointing down into the regulator retainer clip.
7. Install the fuel pressure regulator retainer clip (13).
8. Install the upper manifold assembly. Refer to Intake Manifold Replacement (Upper) in Engine Mechanical - 4.3L.
9. Tighten the fuel filler cap.
10. Connect the negative battery cable.
11. Inspect for leaks.
1. Turn the ignition switch ON for 2 seconds.
2. Turn the ignition switch OFF for 10 seconds.
3. Turn the ignition switch ON.
4. Inspect for fuel leaks.
