Test Procedure

1. Completely open the valve on the Power Steering Analyzer flow meter.
2. Start the engine and let idle long enough to circulate power steering fluid through the analyzer and hoses, until the air is out of the fluid. Shut off the engine.
3. Check the power steering fluid level and add fluid as necessary. Start the engine again and let idle.
4. The analyzer gauge should read below 862 kPa (125 psi). If above, inspect the hoses for restrictions and repair as necessary. The initial pressure should be in the range of 345-552 kPa (50-80 psi). The flow meter should read between 1.5 and 1.7 GPM.
   CAUTION:

   The following test procedure step involves testing maximum pump pressure output and flow control valve operation. Do not leave valve closed for more than five seconds as the pump could be damaged.

   NOTE:

   Power steering pump maximum relief pressure is 9, 600 to 10, 100 kPa (1392 to 1465 psi.).

5. Close the flow meter valve fully three times and record highest pressure indicated each time. All three readings must be above specifications and within 345 kPa (50 psi) of each other. 
   • If the power steering pump pressures are above specifications, but not within 345 kPa (50 psi) of each other, replace the power steering pump.
   • If the pressures are within 345 kPa (50 psi) of each other, but below specifications, replace the power steering pump.

   If the power steering pump requires replacement. Refer to PUMP, REMOVAL .

   CAUTION:

   During the next step, do not force the pump to operate against the stops for more than 5 seconds at a time as pump damage may result.

6. Completely open the valve on the Power Steering Analyzer flow meter. Turn the steering wheel to the extreme left until the stop in the steering gear is met, then turn the steering wheel to the right until the right stop is met. Record the highest indicated pressure at each position. Compare the recorded readings to the specifications. If the highest output pressure reading against one stop is not within 345 kPa (50 psi) of the highest reading at the other stop, the steering gear is leaking internally and must be replaced.

If the power steering gear requires replacement. Refer to GEAR, REMOVAL .