Power steering is one of those systems you rarely think about until something feels or sounds off. It makes maneuvering your vehicle smooth and effortless, especially at low speeds or when parking. But if you start hearing whining, groaning, or squealing noises when you turn the wheel, it’s a clear sign that something isn’t right. Ignoring these sounds can lead to more expensive repairs and, in some cases, loss of steering control.
Here’s what those noises may mean and why they should be checked as soon as possible.
Whining or Groaning When Turning
One of the most common power steering noises is a whining or groaning sound that gets louder as you turn the wheel. This often indicates low power steering fluid. Without enough fluid, the pump draws in air, creating that distinct sound. The fluid level may be low due to a leak, which should be repaired promptly to prevent the pump from overheating.
If the fluid is topped off but still makes noise, it may be contaminated with dirt or moisture, which reduces its ability to lubricate the system.
Squealing Noises
If you hear a loud squeal when turning the wheel, especially right after starting the car, the power steering belt may be loose or worn. Also called the serpentine belt, this component drives the power steering pump. Over time, belts stretch, crack, or lose grip. A slipping belt makes a squealing sound, particularly when the steering system is under load.
Replacing a worn belt is a relatively simple fix compared to the damage that can occur if the belt breaks completely.
Knocking or Clunking Sounds
Knocking or clunking when you steer often points to worn suspension or steering components, such as tie rods or ball joints, rather than the power steering system itself. These parts work closely with power steering, so a problem in one area can feel or sound like it’s coming from the steering. If you hear clunks while driving over bumps or turning tightly, it’s time for an inspection.
Causes of Power Steering Leaks
Leaks are one of the main reasons drivers hear noises from their power steering. Fluid can escape from hoses, seals, or the steering rack. Even small leaks can cause big problems if ignored, since the pump relies on fluid to stay lubricated. Signs of a leak include a drop in fluid level, visible drips under the car, or a shiny, wet appearance around hoses and connections.
Stiff Steering Along with Noise
If turning the wheel feels stiff in addition to making noise, the pump may be failing. A weak pump struggles to deliver enough pressure to assist steering. This not only makes driving harder but can put extra stress on other steering components. Replacing the pump promptly prevents further damage to the system.
Why Professional Diagnostic Is Needed
Steering noises can sometimes overlap with suspension or wheel issues, making it difficult to pinpoint the cause without experience and the right tools. A technician can inspect the fluid, belts, hoses, and mechanical components to determine exactly what’s wrong. Catching the issue early usually means a simple repair rather than a major one.
Power Steering Repairs at Four Car Garage in San Mateo, CA
If you’ve started hearing strange noises when turning the wheel, don’t wait for them to get worse. At Four Car Garage in San Mateo, CA, our technicians will inspect your power steering system, identify the source of the sound, and make the necessary repairs. From fluid leaks to worn belts or pumps, we’ll restore smooth, quiet steering so you can drive with confidence.
Schedule your service today and let us take care of your vehicle’s steering needs.