Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. How Long Does a Power Steering Input Shaft Seal Last?

How Long Does a Power Steering Input Shaft Seal Last?

Power Steering Input Shaft Seal

To maneuver your car, the steering wheel connects to a steering shaft, which runs through the dash and then down to the gearbox where it also joins the power steering system. Because the power steering system in most cars today is hydraulic, seals need to be used to prevent fluid from leaking out. The power steering input shaft seal is designed to ensure that fluid isn’t lost from the junction point of the steering shaft and power steering system.

There are actually two seals here. The outer seal is really just a dust cover, and it’s designed to prevent dirt, dust and debris from damaging the inner seal. The inner one is the actual power steering input shaft seal. Its job is to keep fluid in the system, while preventing contaminants from entering.

Like other seals on your car, the power steering input shaft seal doesn’t really have an “active” or “inactive” state. It’s always working, because there is always fluid in the system. There is no lifespan for this seal, and it’s not part of regular maintenance service, either.

With that being said, this seal is definitely subject to wear and tear, as well as exposure to caustic power steering fluid. Over time, it will become brittle and crack, allowing fluid to seep out. A more serious leak might allow fluid to leave the system in quantities significant enough to affect your steering.

It’s important to know the signs and symptoms that indicate a possible leak from the power steering input shaft. There aren’t that many, but a few things you can watch for include the following:

  • Low power steering fluid (this indicates a leak somewhere in the system)
  • Power steering fluid under the car near the back of the engine area (where the power steering rack is located)
  • Turning the steering wheel produces a whining noise from the power steering pump (a symptom of low power steering fluid)

If you notice any of these symptoms, the entire power steering system needs to be checked, including the power steering input shaft seal. A certified mechanic can help to diagnose and replace your power steering input shaft seal if required.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
P0477 OBD-II Trouble Code: Exhaust Pressure Control Valve Low
P0477 code means that the PCM has detected an abnormally low voltage reading often due to the exhaust back pressure control valve circuit.


Related questions

Q: The shop is saying the power steering pump is bad and it needs a new line for $820

Hello, thanks for writing in about your Pontiac G6. If the power steering hose leaked out all of the fluid then I'm not sure as to why you would need to replace the whole pump. You could just replace the...

Q: Power steering out and car overheating

Hello. When this combination of symptoms comes up at the same time, it typically indicates that the engine drive belt has broke. When this occurs the water pump and power steering pump will not turn, which will cause other problems....

Q: fluids

Such a small amount of coolant may not completely damage the system, but you still do not want it in the power steering system. The power steering system uses a hydraulic fluid and engine coolant may cause the fluid to...