abnormal noises of power steering

1. Abnormal noises of power steering description of symptom

1. Oil operation sounds

A slight oil operating sound is audible in the power steering system. The operating sound is particularly audible when the steering wheel is turned while the vehicle is stopped. Since this operating sound does not directly affect the steering wheel functions, do not replace the relief valve unless this operating sound is extremely loud.

If the steering force is significantly heavy or if there are abnormal noises, the power steering unit or the power steering oil pump may be defective. However, the same malfunction occurs if there is air in the power steering fluid. In this case, first inspect the screws in the piping system for looseness and the hoses in this system for any breakage.
If the malfunction occurs even if no air is in the power steering fluid, inspect and repair the power steering oil pump or power steering unit.

If there are hissing sounds, they are being caused by the power steering unit. If there are growling or rattling sounds, they are being caused by the power steering oil pump.

2. Abnormal noises of power steering diagnostics

1. Abnormal noise from the power steering unit

Disconnected pressure hose fixing section

Tighten the hose fixing section.

Loose tie rod end

Tighten or replace the tie rod end.

Looseness in the power steering unit installation section

Tighten the power steering unit mounting section.

2. Large operating sound of power steering oil pump

Excessive back pressure from the hose or the power steering unit

Replace the power steering unit.
Repair the power steering oil pump.

3. Increase in volume of abnormal noise from power steering oil pump

Air intrusion into the power steering fluid

Bleed the air from the fluid pressure system.

Low power steering fluid level

Add fluid.

Loose pump mounting

Tighten the mounting bolt.

4. Abnormal noises from the steering column

Loose universal joint

Replace the steering shaft.