Blazer 2WD V6-4.3L VIN X (2004)
Fuel Pressure Regulator: Service and Repair
FUEL PRESSURE REGULATOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the upper intake manifold assembly.
2. Remove the fuel pressure regulator retainer clip (13).
3. Pull and twist the fuel pressure regulator (14) in order to remove the fuel pressure regulator from the fuel pressure regulator housing using a shop
towel to catch any spilled fuel.
4. Remove the regulator seal lower O-ring (18).
5. Remove the regulator assembly filter (17).
6. Remove the regulator seal upper O-ring (16).
7. Remove the regulator seal backup ring (15).
8. Cover the fuel pressure regulator housing to prevent contamination from entering the fuel system.
9. Discard the O-rings.
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.
