LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 154 (Engine Controls - Removal, Overhaul & Installation) >> Fuel Systems >> Fuel Pressure Regulator >> Removal (4.8L, 5.3L & 6.0L)

Removal (4.8L, 5.3L & 6.0L)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Three styles of fuel pressure regulators and fuel rails are used in this model year. Each regulator has a different footprint that consequently changes the size of the receiving port on the fuel rail. The regulator retaining clips are specific to each fuel rail-regulator design and cannot be interchanged.
  1. Disconnect negative battery cable. Loosen retaining bolt on intake manifold sight shield at top of engine. See Figure. Remove intake manifold sight shield from top of engine. Remove intake manifold sight shield retainer bolts. Unclip accelerator cable from intake manifold sight shield retainer. Remove intake manifold sight shield retainer.
  2. Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Before removal, clean area surrounding fuel pressure regulator with a spray type engine cleaner, such as GM X-30A. DO NOT use any solvent that contains Methyl Ethyl Ketone (MEK). Solvents containing MEK may damage fuel system components.
  3. Disconnect the fuel pressure regulator vacuum line. Remove the fuel pressure regulator retainer. See Figure. Remove the fuel pressure regulator. Ensure fuel pressure regulator filter, back-up ring and "O" rings are not still in the fuel rail.
scientia non olet · About LEMON Manuals