Diagnostic Information & Procedures

GENERAL PROCEDURE
Inspect the following:
^ Overfilled reservoir.
^ Fluid aeration and overflow.
^ Hose connections.
^ Verify exact point of leakage.
Example: The point from which the fluid is dripping is not necessarily the point where the system is leaking. Fluid overflowing from the reservoir may appear to be dripping from the bottom of the housing.
^ When service is required:
A. Clean leakage area upon disassembly.
B. Replace leaking seal.
C. Check component sealing surfaces for damage.
D. Reset bolt fastener tightening specifications, where required.

NOTE: Some complaints about the power steering system may be reported as follows:

A. Fluid leakage on garage floor.
B. Fluid leaks visible on steering gear or pump.
C. Growling noise, especially when parking or when engine is cold.
D. Loss of power steering when parking.
E. Heavy steering effort.

When troubleshooting these kinds of complaints, check for an external leak in the power steering system.

EXTERNAL LEAKAGE CHECK








The purpose of this procedure is to pinpoint the location of the leak. In some cases, the leak can easily be located. But, seepage-type leaks may be more difficult to isolate. To locate seepage leaks, use the following method:
1. With the engine off, wipe dry the complete power steering system.
2. Check the fluid level in the pump's reservoir. Adjust fluid level as necessary.
3. Start the engine, then turn the steering wheel from stop to stop several times. Do not hold it at a stop for any length of time, as this can damage the power steering pump. It is easier if someone else operates the steering wheel while you search for the seepage.
4. Find the exact area of the leak and repair leak.