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Home >> Mazda >> 1990 >> 323 Base, Automatic >> Repair and Diagnosis >> Steering >> Power Steering >> Steering System - Power >> Testing >> Pump Fluid Pressure Test
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Pump Fluid Pressure Test

  1. Disconnect pressure hose and connect pressure gauge/valve between steering pump and steering gear. See Figure . Bleed air from system.
  2. Open valve fully. Start engine and idle. Turn steering wheel (lock-to-lock) to increase fluid temperature to 122-140°F (50-60°C). To measure pump fluid pressure, close gauge valve completely.
  3. Increase engine speed to 1000-1500 RPM. Ensure pump pressure is within specification. See HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS  table. If pressure is not within specification, replace pump.
CAUTION: DO NOT leave gauge valve closed for more than 15 seconds or pump may be damaged.
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