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Home >> Oldsmobile >> 1986 >> Custom Cruiser >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum (RWD) >> POWERMASTER Testing >> Final Evaluations

Final Evaluations

  1. Depressurize accumulator with ignition off by applying and releasing brake pedal a minimum of 10 times using approximately 50 lbs. (22.7 kg.) of force on pedal. Remove Test Gauge Adapter (J-35126). Reinstall pressure switch and electrical connector and reservoir cover.
  2. With Powermaster functioning normally, apply brake pedal and note pedal travel. Pedal should not creep at steady pressure. Brake warning light should not indicate pressure differential between pressure circuits.
  3. Observe running motor and pump sound from driver's seat. Consult diagnostic symptom chart for conditions and performance values which differ from normal.
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