Diagnosis And Testing - Power Steering Flow And Pressure Test: Notes

The following procedure is to be used to test the operation of the power steering system on this vehicle. This test will provide the flow rate of the power steering pump along with the maximum relief pressure. This test is to be performed any time a power steering system problem is present to determine if the power steering pump or power steering gear is not functioning properly. The following flow and pressure test is performed using the Power Steering Analyzer Kit, Special Tool 6815, hoses, Special Tools 6905 and 6959, and fittings from adapter kit, Special Tool 6893. (Fig 1).

Fig 1: Identifying Power Steering Analyzer With Hoses Installed

Courtesy of DAIMLERCHRYSLER CORP.

1. Assemble hoses on Power Steering Analyzer, Special Tool 6815, as shown. Install Pressure Hose, Special Tool 6905 (in 6893 kit), in the inlet fitting on Power Steering Analyzer. Install Pressure Hose, Special Tool 6713 (in 6815 kit) on Pressure Hose, Special Tool 6905. Install Pressure Hose, Special Tool 6959, in the outlet fitting on Power Steering Analyzer.
   CAUTION: To prevent personal injury, safety goggles should be worn at all times when performing any test procedures on the power steering system.
2. Install Adapter Fitting, Special Tool 6844, on Pressure Hose, Special Tool 6713. Install Adapter Fitting, Special Tool 6826, on Pressure Hose, Special Tool 6959. Both Special Tool 6844 and 6826 can be found in Adapter Set, Special Tool 6893. (Fig 2).
   Fig 2: Identifying Power Steering Analyzer Adapters 6893

   Courtesy of DAIMLERCHRYSLER CORP.
3. Unscrew the tube nut and disconnect the power steering fluid pressure hose from the power steering pump. (Fig 3).
   Fig 3: Identifying Power Steering Hoses At Pump

   Courtesy of DAIMLERCHRYSLER CORP.
4. Connect Adapter Fitting, Special Tool 6844, attached to pressure hose from inlet (gauge end) of Power Steering Analyzer to the pressure fitting on the power steering pump. Tighten the tube nut to 34 N.m (25 ft. lbs.).
5. Connect the vehicle's power steering fluid pressure hose to Adapter Fitting, Special Tool 6826, which should be already installed in the outlet hose (valve end) of Power Steering Analyzer. Tighten the tube nut to 34 N.m (25 ft. lbs.).