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Brake Pressure Regulator: Fox

  1. Depress brake pedal once firmly. Release brake pedal quickly, watching for regulator lever to move when pedal is released. If regulator lever does not move when pedal is released quickly, replace regulator. If regulator lever moved, go to next step.
  2. Raise and support vehicle. Using Spring Compressors (VW 5340), compress rear suspension until measured distance between center of wheel and edge of fender lip is approximately 15" (381 mm). Compress both sides of rear suspension at the same time.
  3. Attach Pressure Gauges (US 1016) to left front brake caliper and right rear brake cylinder. Bleed pressure gauge and hoses through valve on gauges. Pump brake pedal several times. Press on brake pedal until reading on front gauge shows pressure given for 1st reading in BRAKE PRESSURE TABLE (FOX) . Hold brake pressure to specification. Rear gauge reading should be within specification given for 1st reading in BRAKE PRESSURE TABLE (FOX).
  4. Increase pressure on brake pedal until reading on front gauge shows pressure given for 2nd reading in BRAKE PRESSURE TABLE (FOX). Hold brake pressure to specification. Rear gauge reading should be within specification given for 2nd reading in BRAKE PRESSURE TABLE (FOX). If pressures are within specification, brake pressure regulator is functioning properly. If pressures are not within specification, go to next step.
  5. If pressure is too high, decrease spring pressure on regulator. If pressure is too low, increase spring pressure on regulator. If adjusting spring pressure on regulator does not bring pressures within specification, replace pressure regulator. Disconnect gauges, and bleed brakes.