Volkswagen Front Wheel Drive 1974-1989 Repair Guide

Pressure Regulator

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REMOVAL & INSTALLATION



See Figure 1

The regulator can be removed without removing the fuel rail assembly. When installing the regulator, use a new O-ring and hose clamp.

  1. Disconnect the negative battery cable and relieve the fuel system pressure.
  2.  
  3. Disconnect the vacuum hose from the pressure regulator.
  4.  
  5. Slide the spring clamps up the hose (away from the connections), then disconnect the hoses from the pressure regulator. Discard the clamps.
  6.  
  7. Remove the bolts securing the pressure regulator, then pull it out from the fuel rail. Discard the O-ring.
  8.  

To install:
  1. Install a new O-ring on the pressure regulator. Lightly coat the O-ring with gasoline.
  2.  
  3. Carefully push the pressure regulator into the fuel rail. Tighten the securing bolts to 11 ft. lbs. (15 Nm).
  4.  
  5. Connect the fuel hoses to the pressure regulator using new clamps.
  6.  
  7. Connect the vacuum hose to the pressure regulator and the negative battery cable.
  8.  
  9. Start the engine and check for leaks.
  10.  

 
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