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Power Steering Pump Replacement

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Power steering pump replacement involves removing the old hydraulic pump and installing a new or remanufactured one. The power steering pump provides pressurized fluid to assist with steering effort. A failing pump causes whining noises when turning, stiff steering, and fluid leaks. Some modern vehicles use electric power steering and do not have a hydraulic pump.

Estimated time: 2-3 hours

Cost Breakdown

DIY (Parts Only)

$100 - $350

Professional Shop

$300 - $700

Prices vary by location, vehicle make/model, and shop rates.

Tools Needed

  • Socket wrench set
  • Serpentine belt tool
  • Flare nut wrench set
  • Drain pan
  • Power steering fluid
  • Pulley puller/installer (if transferring pulley)

Step-by-Step Instructions

1

Place a drain pan under the pump. Disconnect the pressure and return hoses from the pump and allow the fluid to drain.

2

Remove the serpentine belt from the pump pulley by releasing the tensioner.

3

Remove the pump mounting bolts and pull the pump out of its bracket.

4

If the pulley does not come with the new pump, use a pulley puller to remove it from the old pump and a pulley installer to press it onto the new pump. Do not use a hammer.

5

Install the new pump in the bracket and torque the mounting bolts to specification.

6

Reconnect the pressure and return hoses. Use new O-rings or sealing washers if provided.

7

Reinstall the serpentine belt, fill the reservoir with the correct power steering fluid, and bleed the system by turning the wheel lock-to-lock several times with the engine running.

8

Check for leaks at all connections and verify smooth steering operation.

Tips & Warnings

  • Use only the power steering fluid type specified for your vehicle — ATF, synthetic, or manufacturer-specific fluid.
  • Bleed air from the system by turning the steering wheel fully left and right multiple times. Air in the system causes whining and jerky steering.
  • A groaning noise that gets worse when turning is a classic sign of a failing pump or low fluid.
  • Check the power steering hoses for leaks and deterioration when replacing the pump — they are a common source of leaks.

Related OBD-II Codes

P0551Power Steering Pressure Sensor Circuit Range/Performance

Related Recalls

Recommended Parts & Tools

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