5 Critical Symptoms of a Failing Power Steering Pump

If you notice any of these signs, your power steering pump (PS pump) may need a replacement:

1. Noisy power steering pump: A high-pitched whining noise that gets louder as you accelerate can mean the pump is struggling. This can be due to restricted fluid flow, worn bearings, or an old pulley. 
2. Hard or stiff steering at low speed: Difficulty turning the steering wheel could indicate low fluid levels or the pump failing to generate enough hydraulic pressure. This is especially noticeable at low speeds when the pump isn’t providing sufficient hydraulic pressure for the steering rack to function properly. 
3. Fluid leaks: Reddish or light brown fluid pooling under your car or around the pump likely means you have a power steering fluid leak due to a failing pump seal. 
4. Vibrating steering wheel: A bad power steering pump can make the steering wheel shake, especially when the car is idling or making a turn. 
5. Squealing belt: If the pump’s bearings are worn, the belt may slip on the power steering pump pulley and squeal. This noise may also happen when fluid leaks onto the belt.

So, how do you fix PS pump failure?
Let’s find out.

How to Replace a Power Steering Pump: A General Know-How

Power steering pump replacement is a complex job that requires expertise, special tools, and equipment, including:

• Jack and jack stands
• Drain pan
• Socket wrench set, wrench set, and torque wrench
• Power steering pulley and hose remover tool
• Replacement power steering pump
• Power steering fluid

But here’s the thing:
Attempting a DIY repair without proper knowledge or tools can further damage the system and risk your safety. It’s best to have a professional auto repair mechanic handle the replacement.

Here’s how they would replace the old pump:

A. Access the Pump

1. Disconnect the car battery (negative terminal first) to prevent electrical accidents.
2. Use a jack to lift the vehicle onto the jack stands.
3. Open the hood, then remove the engine cover.
   
4. Detach the serpentine or drive belt by loosening the tensioner pulley.Note: Older vehicles may have a separate power steering belt, while newer models typically use a serpentine belt that drives multiple pulleys.
5. Remove the lower engine covers (skid plate).
6. Remove the radiator fan shroud and the fan to gain clear access to the power steering pump.

B. Disconnect the Old Pump

1. Place a drain pan under the vehicle, as some fluid may leak out while disconnecting the power steering pump.
2. Locate and remove the high-pressure hose, reservoir supply line, return line, and any remaining hydraulic connections from the power steering pump and steering gear.
3. Remove the locking nut from the pump shaft with a power steering removal tool to detach the power steering pulley.
4. Using an impact wrench or a socket, remove the mounting bolts holding the power steering pump to the engine block.
5. Remove the power steering pump body.

C. Install the New Pump

1. Transfer the mounting bracket from the old pump body to the new one, and secure the pump to the bracket using the old mounting bolts.
2. Install the new power steering pump and secure the pulley onto the pump shaft, ensuring proper alignment with the crankshaft pulley.
3. Secure the new pump to the engine block by tightening each bolt through the mounting bracket and onto the engine block with a torque wrench.
4. Reattach each pressure line to the new pump.
5. Reinstall the serpentine belt (or power steering belt in older vehicles) and ensure the belt tension is correct.
6.  Reattach the radiator fan and shroud.
7. Fill the power steering fluid reservoir (or power steering reservoir).
8. Reconnect the car battery (starting with the positive terminal this time).
9. Take the vehicle for a test drive to ensure smooth steering operation and check for unusual noises or leaks.

Now that you know how a PS pump is replaced, let’s explore its estimated costs.

How Much Does a Power Steering Pump Replacement Cost

Power steering pump replacement costs typically range between $500 and $800. This includes:

• Parts cost: $200 to $500
• Labor cost: around $300

The total cost may increase depending on:

• Vehicle’s make and model: Luxury vehicles and rare or older discontinued models (for example, Pontiac) often have higher replacement costs due to the difficulty of finding parts.

• New or refurbished pump: New power steering pumps are more expensive than refurbished ones.

• OEM or aftermarket parts: Original Equipment Manufacturer (OEM) parts typically cost more than aftermarket alternatives.

• Additional repairs: Replacing related parts, such as the power steering hoses, an old pulley, or a belt, can add to the total expense.

TIP: Whether you drive a Honda, Toyota, or Nissan, have your power steering pump inspected at a repair shop every 100,000 miles to ensure longevity and optimal performance.

Thinking about driving with a failing pump?
Here’s why it’s a bad idea.

Can You Drive with a Failed Power Steering Pump?

No, driving with a failing pump is not recommended for safety reasons. 

A failing power steering pump can make the steering feel unresponsive, reducing overall control. This lack of assistance becomes risky during sharp turns or parking maneuvers. At higher speeds, the increased resistance can make precise steering adjustments harder and driving difficult.

To avoid future problems, it’s best to replace failed power steering pumps promptly and maintain your hydraulic power steering system.

Looking to extend the life of your power steering pump?
Explore some helpful maintenance tips.

How to Prevent Power Steering Pump Failure

Follow these tips to keep your new power steering pump working properly:

1. Check the power steering reservoir regularly to monitor the fluid levels and refill it with the correct fluid type.
2. Follow your car manufacturer’s schedule for replacing the old hydraulic fluid to keep the system clean.
3. Avoid turning the steering wheel forcefully when the car is stationary, as this puts extra strain on the pump.
4. Inspect power steering hoses and connections for any fluid leaks. Even a small leak can cause significant problems over time.
5. Ensure the serpentine belt running the power steering pump isn’t worn, frayed, or loose.
6. Visit an auto repair shop to have your hydraulic power steering system inspected during routine maintenance to catch issues early.