The power steering pump pressurizes the hydraulic fluid that assists steering. Common symptoms include a whining noise when turning, a heavy steering feel, and fluid leaks. If you notice any of these signs, have the system inspected promptly to prevent damage.
Common symptoms
Below are the most frequent indicators that the power steering pump may be failing or not delivering proper pressure. Recognizing these early can help prevent further damage to the steering system.
- Whining, groaning, or squealing noise when turning the wheel or with the engine running.
- Steering that feels heavy or stiff, especially at low speeds or when parking.
- Steering wheel feels “spongy,” stiff, or does not return smoothly to center.
- Power steering fluid leaks around the pump, hoses, or underneath the vehicle.
- Low power steering fluid level or fluid that is dark, dirty, or burnt-smelling.
- Foamy or bubbly power steering fluid in the reservoir, indicating air in the system.
- Squealing belt or other belt noises, often due to a loose or worn serpentine belt driving the pump.
These signs point to a hydraulic issue in the steering system and warrant a professional check to prevent further damage to the pump or other components.
Next steps and checks
If you notice any of the above symptoms, you can perform some basic, safer checks to help determine if the pump is at fault or if another issue is involved. These steps are intended to guide you before you visit a shop.
Initial checks you can safely perform
Start with non-invasive inspections and avoid driving if steering becomes dangerously hard. Basic checks include examining fluid levels, leaks, and belt condition, as well as listening for noises while turning the wheel.
- Check the power steering fluid level in the reservoir and inspect its condition. Refill only with the specified fluid for your vehicle, and look for leaks around the pump and hoses.
- Inspect the serpentine belt that drives the pump. Look for cracks, fraying, oil contamination, or looseness; replace or adjust as needed.
- Look for visible leaks around the power steering pump, hoses, and reservoir. Puddles or damp areas under the vehicle are common leak indicators.
- With the engine off, turn the steering wheel gently from lock to lock to feel for unusual resistance. Repeated stiffness may indicate pump or belt issues.
- If you suspect air in the system, a professional may bleed the hydraulic lines to remove trapped air and restore smooth operation.
- Observe the fluid’s color and odor. Milky, very dark, or burnt-smelling fluid can indicate contamination or overheating and may require a flush and replacement.
- Be aware that modern vehicles with electric power steering (EPS) may show warning lights or different symptoms. If a warning light illuminates, refer to the owner’s manual and seek service guidance promptly.
If these checks don’t resolve the issue or the steering remains heavy, leaking persists, or unusual noises continue, arrange a professional inspection. Driving with a suspected faulty pump can lead to complete loss of steering assist and potential safety risks.
Summary
The most common signs of a faulty power steering pump are a whining or groaning noise when turning, a heavy or stiff steering feel, and visible fluid leaks or low fluid levels. Additional indicators include foamy fluid, dark or burnt-smelling fluid, belt noises, and steering irregularities. If you notice these symptoms, perform basic checks and seek professional diagnosis to prevent further damage and ensure safe driving.
How much should it cost to replace a power steering pump?
between $699 and $925
The average cost for a Power Steering Pump Replacement is between $699 and $925. Labor costs are estimated between $207 and $304 while parts are priced between $492 and $621. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
Can AutoZone check power steering?
Power steering makes your steering wheel easy to turn and helps you control your vehicle. If you're having issues with the system, stop into an AutoZone for help diagnosing the problem, or check for one of these issues.
What does your car do when your power steering pump is going out?
Whining or Squealing Noise: This is a telltale sign of power steering issues, often caused by a worn-out pump or low fluid. Vibrations While Steering: If the wheel vibrates or feels rough as you turn, especially at low speeds, it might be a warning of issues with the power steering pump or a belt problem.
How do I check if my power steering pump is failing?
Symptoms of a Bad Power Steering Pump
- Fluid Leaks. One of the most common signs of pump failure is a fluid leak.
- Noises. Next, you may hear the power steering pump making strange noises.
- Hard to Turn Steering Wheel. As the pump goes bad, you will notice an increased difficulty when turning your car.
- Choppy Steering.