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Home >> Mercury >> 1999 >> Villager Base >> Repair and Diagnosis >> Steering >> Power Steering >> Power Rack & Pinion >> Testing >> Pressure Test >> Pressure Testing
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Pressure Testing

  1. Increase engine speed to 1000 RPM, turn steering wheel to left or right stop position and read pressure. Pressure reading in stop position should be 1109-1194 psi (7649-8238 kPa).
  2. If pressure is less than specified, slowly close shutoff valve on power steering analyzer and check pressure. If fluid pressure is okay with valve closed, go to next step. If fluid pressure is less than specified, repair or replace power steering pump.
  3. If fluid pressure is as specified, the steering gear is faulty, replace rack and pinion unit. If fluid pressure exceeds specification, replace power steering flow control valve.
  4. Turn engine off. Remove power steering analyzer and reconnect all fittings. Fill and bleed hydraulic system. Tighten bolts to specification. See TORQUE SPECIFICATIONS table.
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