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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis >> Steering >> Steering Column >> Rack & Pinion Power Steering System (Service Information) >> Diagnosis And Testing >> Hydraulic Flow And Pressure - 5.7L Engine >> Flow Test - Flow From Power Steering Pump

Flow Test - Flow From Power Steering Pump

  1. Check the power steering belt to ensure it is in good condition and adjusted properly.
  2. Connect the pressure gauge hose from the Power Steering Analyzer to Tube 8630-2.
  3. Connect Adapter 8630-3 to Power Steering Analyzer test valve end.
  4. Disconnect the high pressure hose from the power steering pump.
  5. Connect Tube 8630-2 to the pump hose fitting.
  6. Connect the power steering hose from the fan motor to Adapter 8630-3.
  7. Open the test valve completely.
  8. Start engine and let idle long enough to circulate power steering fluid through the flow/pressure test gauge.
  9. Shut off the engine and check the fluid level, add fluid ass necessary. Start engine again and let idle.
  10. The initial pressure reading should be 965 - 1172 kPa (140 - 170 psi). If pressure is higher inspect the hoses for restrictions and repair as necessary.
  11. Increase the engine speed to 1100 RPM and read the flow meter. The reading should be 2.8 GPM minimum, if the reading is below this specification, the pump should be replaced.
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