bubbles in power steering fluid

Bubbles in Power Steering Fluid : [Symptoms, Causes and Fixes]

Are you having a hard time with your steering wheel and also the steering column making weird noises when steering? The problem could be Bubbles in the power steering fluid. 

Before your vehicle’s power steering suddenly stops, let’s investigate the issue and fix it. 

What are the Symptoms of Bubbles in Power Steering Fluid?

The screechy noise in the front wheels is a typical indicator of bubbles in the power steering system. If you spin the steering wheel vigorously, the moaning or groaning sound becomes stronger.

Inspect the liquid level and appearance as soon as your steering grunts or whines. You’re fortunate if the formation significantly decreased and subsided once the fluid was topped off. However, if the bubbling and sounds start up again, you presumably have a breach someplace, and airflow is drawing through the breach.

The steering wheel could become too jerky or challenging to steer because the fluid isn’t functioning correctly.

Why are there Bubbles in Power Steering Fluid?

The leading cause of bubbling power steering fluid is airflow through the power steering system. The air will easily mix into this boiling power steering fluid while driving, creating a bubbling power steering fluid in your system.

This could happen via various reasons like leaks in the cylinder of the power steering fluid, in the low-pressure pipes, or the power steering suction.

The compressor and the line that links it to the cylinder are where air often enters the power steering fluid. Usually, suction is used to introduce the power steering liquid into the compressor. A sloppy or problematic link will cause air to be drawn into the unit by the vacuum.

Vibration and a wobbly steering wheel sensation are brought on by airflow in the power steering liquid. When the foamy fluid enters the cylinder, it turns into bubbly power steering oil.

An inadequate or failed power steering pump may crush shavings and aged components, producing overheating. The cylinder of steering fluid will begin to bubble and maybe even surge. The oil may occasionally spill as you rotate the steering column from edge to edge.

Hydraulic pressure can leak back into the reservoir due to a pinched steering pipe or line. This will give off the impression that it is bubbling.

Insufficient power steering liquid levels will decrease the ability of the fluid storage to release heat, causing boiling and bubbling of the existing fluid.

Driving like a maniac could cause your power steering fluid to bubble. The steering mechanism and fluid will boil and bubble if you quickly edge to edge or tilt the steering wheel. 

How to Get Rid of Bubbles in Power Steering Fluid?

If driving your automobile is getting harsher and more challenging, there could be an issue with the hydraulic system of the power steering. Gas bubbles or trapped air pockets in the power steering system could be the only issue.

Something that uses hydraulics, such as the power steering pump, is susceptible to damage if gas comes into the system. The compressor will compress any gas that enters the power steering system, causing vibration and handling problems.

Your chances of finding a specific method the automaker advises for solving this bubbling issue are higher the more recent your automobile is. For instructions relevant to your car, make sure to consult the owner’s handbook. However, in theory, follow these instructions to empty your power steering reservoir of gas.

  • Ensure that the motor is cold and turned off.
  • Examine the power steering oil level by removing the cover from the power steering cylinder.
  • Add enough liquid to fill it completely.
  • Reinstall the cover.
  •  Determine where the steering system’s hydraulic steering drain outlet is located. 
  • Insert a hose into the bleeding valve. The line must extend further to touch the ground.
  • A dump bucket should be set up on the ground next to the vehicle and let the other end of the pipe into it.
  • Start the vehicle.
  • Open the bleeding gate a little bit.
  • Make as many edge-to-edge rotations of the front tires to the right and left.
  • Switch the ignition off.
  • Shut off the bleed valve.
  • Fill up the cylinder with power steering fluid.
  • Verify the substance that leaked into the bucket and Continue the process if gas bubbles are found.

Continue the cycle till there are no bubbles in the liquid inside the outflowing fluid. You are good to go if your power steering fluid is bubble free.


In this article, we have seen what power steering fluid is, why they bubble, how to get rid of bubbles in power steering fluid, etc. Don’t manoeuvre like a maniac, and don’t let the steering column overheat to avoid bubbling issues on your steering fluid. Maintain your fluid levels perfectly for a problem-free ride.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *