GM Full-Size Trucks 1988-1998 Repair Information

Fuel Pressure Regulator

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REMOVAL & INSTALLATION



See Figure 1

  1. Disconnect the negative battery cable.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Remove the upper manifold assembly.
  6.  
  7. Remove the fuel pressure regulator vacuum tube.
  8.  
  9. Disassemble the fuel pressure regulator snapring retainer.
  10.  
  11. Remove the fuel pressure regulator assembly and the O-rings. Discard the O-rings, filter and back-up O-rings.
  12.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the fuel pressure regulator-CSFI systems

To install:
  1. Lubricate the O-rings with clean engine oil and install as an assembly.
  2.  
  3. Install the fuel pressure regulator, attach the vacuum tube.
  4.  
  5. Install the snapring retainer.
  6.  
  7. Install the upper manifold assembly.
  8.  
  9. Connect the negative battery cable.
  10.  

 
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