GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Colorado Pickup - 2WD 🢒 Engine 🢒 Engine Controls - 3.5L (L52) 🢒 Fuel Pressure Regulator Replacement

Removal Procedure
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .

    2. Object Number: 1361724 Size: SH
  2. Disconnect the fuel return hose/pipe (1) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .

    3. Object Number: 1352028 Size: SH
  3. Disconnect the atmospheric vent hose (2) from the fuel pressure regulator (3).

    4. Object Number: 1361730 Size: SH
  4. Clean any dirt from the fuel pressure regulator (3) and the surrounding area.
  5. Remove the fuel pressure regulator screws (4, 5).
  6. Pull the fuel pressure regulator (3) and O-ring seal (2) from the fuel rail (1).

    7. Discard the O-ring seal (2).

  7. Pull the fuel rail return pipe (6) and O-ring seal (7) from the fuel pressure regulator (3).

    8. Discard the O-ring seal (7).

  8. Inspect the regulator filter screen for contamination. If contaminated, replace the fuel pressure regulator.

Installation Procedure

    Object Number: 1361730 Size: SH
  1. Install the new fuel pressure regulator filter.
  2. Lightly lubricate the O-ring seals (2, 7) with mineral oil GM P/N 9981704.
  3. Install the new O-ring seals (2, 7) to the following:
    4. • The fuel pressure regulator (3)
    • The fuel rail return pipe (6)
  4. Press the fuel rail return pipe (6) and O-ring seal (7) into the fuel pressure regulator (3).
  5. Press the fuel pressure regulator (3) and O-ring seal (2) into the fuel rail (1).

    6. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the fuel pressure regulator screws (4, 5).

    7. Tighten
    Tighten the fuel pressure regulator screws to 8 N·m (71 lb in).


    Object Number: 1352028 Size: SH
  7. Connect the atmospheric vent hose (2) to the fuel pressure regulator (3).

    8. Object Number: 1361724 Size: SH
  8. Connect the fuel return hose/pipe (1) to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  9. Inspect for leaks.
    10. 9.1. Turn ON the ignition for 2 seconds.
    9.2. Turn OFF the ignition for 10 seconds.
    9.3. Turn ON the ignition.
    9.4. Inspect for fuel leaks.