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Home >> Volkswagen >> 1983 >> Quantum Base, 2D Coupe, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Brake Proportioning Valve Adjustment >> JETTA, Rabbit, Rabbit GTI & Rabbit Pickup

JETTA, Rabbit, Rabbit GTI & Rabbit Pickup

  1. Valve is located below master cylinder. Using two 1500 psi gauges, connect one to left front caliper and other to right rear wheel cylinder. Bleed gauges and depress brake pedal several times.
  2. Apply brake pedal until front gauge reads indicated pressure for first reading in Brake Pressure Chart. Record rear gauge reading. Increase pedal pressure until front gauge reads indicated pressure for second reading.
  3. Record rear gauge reading. Remove gauges, and bleed hydraulic system. If pressures do not meet specifications, replace proportioning valve.
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