Steering: Testing and Inspection

Use extreme caution when performing the following procedures. These system operate at or above 1000 psi. Only use the test equipment that is suggested by the manufacturer.
Do Not hold the steering wheel against the stopper for more than five seconds at a time. Doing so will result in very high fluid temperatures and inaccurate liquid pressure measurements.
Use extreme caution when performing this test procedure. The systems to be tested operate at or above 1000 psi. Only use the test equipment that is suggested by the manufacturer.
Do not hold the steering wheel against the stopper for more than five seconds at a time. Doing so will result in very high fluid temperatures and inaccurate liquid pressure measurements.
1. Ensure fluid level is correct at normal operating temperature in reservoir.
2. With the engine Off, remove pressure hose clamp at pump bracket, then disconnect pressure hose from pump.
3. Connect tool No. J-29877-A and J-33996 between pump and disconnected hose.
4. Open the shutoff valve on the tool.
5. Install a tachometer, then start engine.
6. Close the shutoff valve halfway until system reaches a normal operating temperature of 122-140°F, then open the valve and add fluid to ``Max'' level marked on the reservoir.
7. Increase engine speed to 1500 RPM. Do not shut the valve fully closed for more than 10 seconds or fluid temperature will increase and false readings will be obtained.
8. Close the valve fully three times, pressure readings less than 1066 psi., indicates a defective power steering relief valve or pump assembly. A higher pressure indicates a defective relief valve.
9. Rotate steering wheel fully right and then left; the pressure reading should be between 1066-1208 psi. in each position. If the measured pressure fails to meet the specified pressure, an internal steering gear leak may exist.