GM Cavalier/Sunbird/Skyhawk/Firenza 1982-1994

Fuel Pressure Regulator

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REMOVAL & INSTALLATION



See Figure 1



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Fig. Fig. 1: Cross-section view of the fuel pressure regulator assembly

  1. Relieve the fuel system pressure as outlined earlier.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the vacuum hose from the regulator.
  6.  
  7. Place a rag under the connection and remove the fuel return pipe clamp.
  8.  
  9. Remove the fuel return pipe and O-ring from the regulator. Discard the O-ring.
  10.  
  11. Unfasten the pressure regulator bracket attaching screw, then remove the pressure regulator assembly and O-ring. Discard the O-ring.
  12.  

To install:
  1. Lubricate a new pressure regulator O-ring with clean engine oil, then install on the pressure regulator.
  2.  
  3. Install the pressure regulator assembly onto the manifold.
  4.  
  5. Install the pressure regulator bracket attaching screw coated with the appropriate thread locking material and tighten to 31 inch lbs. (3.5 Nm).
  6.  
  7. Connect the vacuum hose to the regulator.
  8.  
  9. Lubricate a new fuel return pipe O-ring with clean engine oil, then install on the end of the pipe.
  10.  
  11. Install the fuel return pipe to the pressure regulator and tighten the attaching nut to 22 inch lbs. (30 Nm).
  12.  
  13. Fasten the fuel return pipe clamp attaching nut to the lower manifold assembly.
  14.  
  15. Tighten the fuel filler cap.
  16.  
  17. Connect the negative battery cable and turn the ignition ON for 2 seconds, OFF for 10 seconds, then ON and check for fuel leaks.
  18.  

 
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