Removal (5.3L)
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Numbers in parentheses refer to numbers in illustrations.
- Relieve the fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE .
- Disconnect the fuel pressure regulator vacuum line.
- Clean any dirt from the fuel pressure regulator retainer and the surrounding area.
- Remove the fuel pressure regulator retainer (8). See Figure.
- Remove the fuel pressure regulator (9).
- Ensure non of the following parts are still in the fuel rail.
- Backup ring (10)
- Regulator seal "O" ring (11)
- Regulator filter (12)
- Regulator seal "O" ring (13)