Hydraulic power steering uses a belt-driven pump to supply pressure to the steering gear or rack. Most pump problems show up as noise, leaks or heavy steering.
Common Causes of Whine
- Low fluid level from a leak.
- Air in the system after a repair.
- Contaminated or the wrong fluid.
- A clogged reservoir screen restricting flow.
- Worn pump bearings or internal wear.
Other Symptoms
- Heavy or uneven steering effort.
- Foamy fluid in the reservoir.
- Fluid leaks at the pump shaft seal or hoses.
Replacement Tips
- Flush old fluid and debris from the system.
- Replace a clogged or cracked reservoir.
- Use the fluid specified for the vehicle.
- Bleed air thoroughly before driving.
Evergreen Parts
Evergreen offers power steering parts identified by engine or vehicle application. Use the Evergreen eCatalog to find the right part, and see where to buy Evergreen through our authorized distributors.
