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Test Procedure

WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Check the power steering belt to make sure that it is in good condition and properly adjusted.

NOTE:

If fluid leaked from the steering system, it should be filled to correct level prior to starting the engine.

  1. Open the test valve completely.
  2. Start engine and let idle long enough to circulate power steering fluid through flow/pressure test gauge and to get air out of the fluid. Then shut off engine.
  3. Check fluid level, add fluid as necessary. Start engine again and let idle.
  4. Gauge should read below 2068 kPa (300 psi), If above specification, inspect the hoses for restrictions and repair as necessary.
  5. Increase the engine speed to 1500 RPM and read the flow meter. If the flow rate (GPM) is below specification, (refer to PUMP SPECIFICATION  for GPM) the pump should be replaced.
    CAUTION:

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

  6. Close 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 pressures are above specifications but not within 345 kPa (50 psi) of each other, replace the pump.
    • If the pressures are within 345 kPa (50 psi) of each other but below specifications, replace the pump.
    CAUTION:

    Do not force the pump to operate against the stops for more than 2 to 3 seconds at a time because, pump damage will result.

  7. Open the test valve and turn the steering wheel to the extreme left AND  right positions three times against the stops. Record the highest pressure reading at each position. If pressures readings are not within 50 psi of each other, the gear is leaking internally and must be replaced.
PUMP SPECIFICATION

GEAR TYPE RELIEF PRESSURE FLOW RATE (GPM) AT 1500 RPM
Rack and Pinion 11135 kPa (1615 psi) 3.0 - 3.5
Recirculating Ball 12065 kPa (1750 psi) 3.5 - 4.0
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