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Pump Pressure Test

  1. With pressure gauge installed, start engine and let it idle. Close valve (no longer than 5 seconds) and check pressure.
  2. Correct pressure is 986-1189 psi (69-84 kg/cm2 ). If pressure is incorrect, check pressure/flow limiting valve. If valve is good, replace steering pump.
  3. To check limiting valve, inspect piston and valve bores for obstructions. Check that piston moves freely in housing. Install new valve if needed.