In the many different systems that make up your vehicle, the power steering system plays a very important role in helping you maintain control and steer your vehicle smoothly. Without it, every U–turn, tight corner, or parking spot would be a struggle.

Whether your power steering has stopped working altogether or you want to get ahead of any problems, understanding the common causes of power steering failure is key. Christian Brothers Automotive is here to help! Our expert technicians have compiled the top five causes of power steering failure and the early warning signs to look out for.

What Happens During Power Steering Failure?

During power steering failure, the hydraulic or electric system that assists the steering mechanism loses its efficiency, resulting in significantly increased resistance when turning the steering wheel. In hydraulic systems, this is often due to a drop in fluid pressure, which is critical for smooth steering operations. For electric power steering systems, a failure typically interrupts the electronic assistance, making the steering wheel lose its power boost.

What Causes Power Steering to Go Out

Power steering failure can result from a range of issues, from fluid leaks to mechanical wear and tear. Understanding these potential issues can help in preventative maintenance and avoid unexpected breakdowns. Let's delve into the specific causes that are often at the root of power steering difficulties:

1. Fluid Leak

One of the most common causes of fluid pressure loss is the development of even a small leak in your fluid lines. This issue typically doesn't occur suddenly; it often starts with a worn seal gradually deteriorating or a hose developing a minor flaw. Power steering fluid puddles are often red if fresh and brown if old.

Over time, these seemingly insignificant problems can escalate, resulting in pump failure and loss of power steering. Dealing with a leak on your own can be a challenging situation, as it may require replacing hoses or fluid lines, as well as replacing seals and potentially the pump itself.

2. Contaminated or Low Fluid

Proper power steering operation requires maintaining the fluid level within specified limits and ensuring it is contaminant-free. Insufficient or dirty fluid can cause pump damage and component failures. The reservoir under the hood allows for fluid checks and top offs, with minimum and maximum lines closely set. Insufficient clean fluid leads to pump wear, overheating, and premature failure.

By routinely checking levels and changing the fluid when needed, you can help avoid these issues. Using the manufacturer-recommended fluid prevents contamination while inspecting for leaks, loose fittings, worn seals, and gaskets, keeping moisture, dust, and debris from compromising the system.

3. Worn Out Pump

Power steering pumps help get the fluid to the right pressure, making it easier for you to make turns. But because of the moving parts, the seals and bearings can wear out with age and use. This causes the pump to work harder, leading to fluid leaks and eventual failure. A worn power steering pump can also be caused by a clogged filter or low fluid levels.

The early warning signs of a failing power steering pump include whining noises when turning the wheel or difficulty turning. If you notice these symptoms, it's important to have your vehicle inspected by a professional as soon as possible to prevent further power steering system problems.

4. Slipping or Broken Belt

The power steering pump relies on the engine's spinning crankshaft for operation. A belt transfers this mechanical energy through a pulley system to drive the pump. But with age and use, belts eventually crack, fray or snap. A broken belt cuts off the pump's power supply, bringing the steering boost to an immediate halt. With the assist system inactive, maneuvering the wheel is near impossible. 

While you can usually spot a belt problem before it snaps by checking for signs of wear, it's always best to have your belts checked during routine maintenance visits and replaced as needed.

5. Lack of Power Steering Maintenance

Neglecting regular maintenance contributes to power steering failure. Without routine checks and servicing, issues like fluid degradation, hose deterioration, and pump wear can go unnoticed until they cause system failure. Power steering systems require periodic inspection to ensure optimal functioning of all components, including:

• Fluid levels

• Fluid quality

• Hoses and connections

• Pump

• Belts

Regular maintenance not only prolongs the life of the power steering system but also helps in identifying potential power steering issues early, preventing more serious and costly repairs down the line. Adhering to the vehicle manufacturer's recommended maintenance schedule is crucial in keeping the power steering system reliable and responsive.

More Power Steering Failure Symptoms

If you don't address any early signs of your power steering going out, your power steering problems will only get worse – eventually leaving you stranded on the road. Some additional symptoms of power steering failure include:

• Difficulty turning the wheel

• Stiff or unresponsive steering

• Squealing or whining noises when turning the wheel

• Age of vehicle and mileage

If you are experiencing any power steering problem, it's important to have your vehicle inspected by a professional mechanic right away!

Need a Power Steering Fix? We're Nearby

If your power steering stopped working or you're experiencing any early warning signs, bring your vehicle to Christian Brothers Automotive for a professional diagnosis and repair. Our certified technicians have the knowledge and experience to accurately diagnose and fix any issues with your power steering system. Trust us to keep your vehicle safe and reliable on the road!

Don't wait until it's too late – find your local CBA and schedule an appointment today!