- Connect a spare pressure hose to the pump.
- Connect the J 25323-A
or J 5176-D
to both of the hoses.
The J 25323-A
will measure the flow rate as well as the pressure.
- Open the valve on the
gage.
- Start the engine.
| 4.1. | Allow the system to reach normal operating temperature and pressure. |
The operating pressure range with the valve open is 552-862 kPa
(80-125 psi).
| 4.2. | Inspect the fluid level. |
Add fluid if required. Refer to
Checking and Adding Power Steering Fluid
.
| 4.3. | Inspect the hoses for restrictions if the pressure is more than
1035 kPa (150 psi). |
Important: Do not leave the valve fully closed longer than 5 seconds. Closing the
valve for longer than 5 seconds may cause damage to the pump.
- Fully close the valve three times.
- Record the pressure reading each time the valve is closed.
The three readings should be within 345 kPa (50 psi) of
each other. The pump is functioning properly if the pressure readings are
at least 6895 kPa (1000 psi). If the pressure readings
are high enough but not within 345 kPa (50 psi) of each
other the valve in the pump is sticking. Perform the following procedure
in order to correct the valve:
| • | Clean the valve with a crocus cloth. |
| 6.3. | Flush the valve if the system contains dirt. |
| 6.4. | Disassemble the pump and the steering gear if the system is extremely
dirty. Replace the power steering gear. Refer to the
Steering Gear Replacement
. |
- Complete the following steps if the pump checks to specification:
| 7.2. | Turn the steering wheel to both stops |
- Record the highest pressure.
Compare the highest pressure to the recorded highest pressure. If the
pressure at both of the stops is not the same as the maximum pressure, the
steering gear is leaking internally.
- Disassemble and repair the steering gear if the steering gear
is leaking internally.
- Turn off the engine.
- Remove the testing gauge.
- Remove the spare hose.
- Reconnect the pressure hose.
- Inspect the fluid level. Refer to
Checking and Adding Power Steering Fluid
.
