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Minimum Pump Flow Test

  1. Install Power Steering Analyzer (014-00230). See Figure . Decrease engine speed to 600 RPM. Slowly close shutoff valve to increase pressure to 1200 psi (84.4 kg/cm2 ). Record flow rate at 130°F (54°C).
  2. If flow rate is less than 2.2 gallons (8.3L) per minute, pump may need service, especially if flow rate at 2200 RPM is less than specification.
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