Steering: Testing and Inspection

DIAGNOSIS AND TESTING - POWER STEERING SYSTEM
STEERING NOISE





There is some noise in all power steering systems. One of the most common is a hissing sound evident at a standstill parking. Or when the steering wheel is at the end of it's travel. Hiss is a high frequency noise similar to that of a water tap being closed slowly. The noise is present in all valves that have a high velocity fluid passing through an orifice. There is no relationship between this noise and steering performance.





BINDING AND STICKING





INSUFFICIENT ASST. OR POOR RETURN TO CENTER





LOOSE STEERING AND VEHICLE LEAD

DIAGNOSIS AND TESTING - POWER STEERING FLOW AND PRESSURE




The following procedure is used to test the operation of the power steering system on the vehicle. This test will provide the Gallons Per Minute (GPM) or flow rate of the power steering pump along with the maximum relief pressure. Perform test any time a power steering system problem is present. This test will determine if the power steering pump or power steering gear is not functioning properly. The following pressure and flow test is performed using Power Steering Analyzer Tool Kit 6815 and Adapter Kit 6893