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Power Steering Pump Replacement
What is a power steering pump?
The power steering pump pressurizes and circulates power steering fluid through the power steering hydraulic system, allowing the steering wheel to turn with greater ease.
How does the power steering pump work?
Power steering pumps create hydraulic pressure, and a hose transfers the pressure to the steering gear, where it can be used to assist in turning the wheels. Another hose then returns the used fluid to be pressurized.
This process happens continuously, and the power steering pump pressurizes fluid any time the engine is running.
Unusual noise or difficulty when steering can signal a failing power steering pump.
What are the symptoms related to a bad power steering pump?
If you have a power steering fluid leak, you'll likely see a puddle of it on the ground under your car. If the fluid level gets too low, the car will get harder to steer, especially at low speeds. The power steering pump may also start making a screeching noise when you turn the steering wheel.
» MORE:Signs your power steering pump is going bad
Lexus GX470 Power Steering Pump Replacement Cost by Year
The average cost for a Lexus GX470 Power Steering Pump Replacement is between $569 and $643 but can vary from car to car.
A vehicle can be driven with leaking power steering components, but you'll need to make sure there's enough fluid for the system to function. If the fluid is leaking fast, have the car towed to a repair shop to prevent damage to the power steering system.
How often do power steering pumps need to be replaced?
In most vehicles, the power steering system will last well over 100,000 miles before any failures occur. Mechanical issues and leaks in the power steering system are usually avoidable if you stick to the maintenance schedule in your owner's manual. But because of the pressure in the system, parts of it will eventually wear out.
How are power steering pump issues diagnosed?
Most power steering issues will create the same symptoms, so it can be difficult to diagnose one part without examining the whole system. When symptoms emerge, the power steering fluid is inspected and topped off, and the condition and tension of the power steering pump belt is noted.
The system may need to be bled of air before diagnosis. Any leaks will become very obvious at that time, and noise from the pump would indicated that it has failed mechanically.
How is a power steering pump replaced?
To replace the pump, the power steering fluid will first need to be drained. The serpentine or power steering belt will be removed, the hoses will be taken off, and the pump will be unbolted from the engine block.
A new pump will then be installed, the lines attached, the belt reinstalled, and the fluid refilled. The system will be bled of air and checked to ensure a complete repair.
We recommend flushing the power steering fluid when replacing the power steering pump.
We recommend checking and replacing worn or leaking power steering hoses when replacing the pump.
