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Home >> Mazda >> 1989 >> 626 Base >> Repair and Diagnosis >> Steering >> Power Steering >> Steering System - Power >> Testing >> Hydraulic System Pressure Test >> Pump Fluid Pressure Test

Pump Fluid Pressure Test

  1. Disconnect pressure hose and connect pressure gauge/valve between steering pump and steering gear. See Figure . Bleed any air from system. Open valve fully. Start engine and idle.
    NOTE: Place gauge set valve on gear housing side.
  2. Turn steering wheel lock-to-lock to increase fluid temperature to 122-140°F (50-60°C). To measure pump fluid pressure, completely close gauge valve for 15 seconds and increase engine speed to 1000-1500 RPM. See HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS  . If pump pressure is not to specification, pump overhaul/replacement is necessary.
CAUTION: DO NOT leave gauge valve closed for more than 15 seconds. Pump damage may occur.
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