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Gear Fluid Pressure Test

  1. Ensure pump pressure is within specification. To measure steering gear fluid pressure, open gauge/valve completely. Increase engine speed to 1000-1500 RPM.
  2. Turn steering wheel from lock-to-lock. Gauge pressure must be within specification. See HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS  table. If pressure is less than specification, steering gear is defective.
HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS (1)

Application Pressure psi (kg/cm2 )
MPV 1066-1138 (75-80)
MX-6 & 626
2-Wheel Steering 1066-1138 (75-80)
4-Wheel Steering
Front 1173-1280 (83-90)
Rear More than 427 (30)
Protege & 323 1067 (75)
RX7 1138-1209 (80-85)
929 1066-1138 (75-80)
(1) Specifications are measured at 1000-1500 RPM, with fluid temperature at 122-140°F (50-60°C).
Fig 1: Connecting Pressure Gauge (Except 4-Wheel Steering)
G101318Courtesy of MAZDA MOTORS CORP.
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