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How do you know if your power steering reservoir is clogged?

If your power steering system is not functioning properly, it could be a sign that the power steering reservoir is clogged. A clogged reservoir can cause a range of issues, from increased steering effort to complete loss of power steering. In this article, we'll explore the signs of a clogged power steering reservoir and how to diagnose and address the problem.


Signs of a Clogged Power Steering Reservoir


The primary symptoms of a clogged power steering reservoir include:



  • Increased steering effort: If you notice that it's becoming harder to turn the steering wheel, especially at low speeds, this could be a sign of a clogged reservoir.

  • Whining or groaning noises: A clogged reservoir can cause the power steering pump to work harder, resulting in unusual noises coming from the steering system.

  • Leaks: A clogged reservoir can cause the power steering fluid to back up and leak from the system.

  • Reduced responsiveness: If the steering feels less responsive or "spongy," it could be due to a clogged reservoir.


If you experience any of these symptoms, it's important to have your power steering system inspected by a qualified mechanic as soon as possible to diagnose and address the issue.


Diagnosing a Clogged Power Steering Reservoir


To determine if the power steering reservoir is clogged, a mechanic will typically perform the following steps:



  • Visual inspection: The mechanic will visually inspect the reservoir and power steering system for any signs of damage, leaks, or blockages.

  • Pressure testing: The mechanic will use a pressure gauge to measure the pressure in the power steering system. If the pressure is significantly lower than the manufacturer's specifications, it could indicate a clogged reservoir.

  • Fluid inspection: The mechanic will examine the power steering fluid for signs of contamination, such as debris or discoloration, which could indicate a clogged reservoir.


If the diagnosis confirms a clogged power steering reservoir, the mechanic will typically recommend replacing the reservoir or flushing the entire power steering system to restore proper function.


Preventing a Clogged Power Steering Reservoir


To help prevent a clogged power steering reservoir, it's important to follow the manufacturer's recommended maintenance schedule for power steering fluid changes. Additionally, avoiding the use of non-approved power steering fluids and keeping the system free of contaminants can help extend the life of the reservoir.p>

By being aware of the signs of a clogged power steering reservoir and taking proactive steps to maintain the system, you can help ensure your vehicle's power steering continues to function smoothly and safely.

How do I unclog a power steering system?


Remove all pressure and return lines from pump. Flush the pump reservoir, return, and pres sure lines by circulating new fluid through components until fluid runs clear. Be sure to use only the specific fluid recom- mended for the vehicle. If the vehicle is over 5 years old, we recommend that the hoses be replaced.



What noise can occur when the fluid level in the power steering reservoir is too low?


Power steering pumps many times will moan when the fluid level drops below a certain point. Three, your power steering fluid level will get low and may even repeatedly get low after filling the power steering fluid. In my estimation the best way to find a power steering fluid leak is to perform a visual inspection.



What happens if power steering reservoir is empty?


If the power steering fluid level is significantly low, air will get sucked into the power steering pump, resulting in a whining or groaning noise that coincides with engine speed.



How to tell if a power steering reservoir is clogged?


  • Fluid Leaks : One of the most noticeable signs is leaking power steering fluid around the reservoir.
  • Low Fluid Levels
  • Whining or Groaning Noises
  • Stiff Steering Wheel
  • Overheating
  • Air Bubbles in the Fluid
  • Warning Light


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.