How To Clean A Power Steering Reservoir

Whitey's Wiring - Custom power steering reservoir made from scratch in  house. | Facebook

How to Clean a Power Steering Reservoir: Maintain Your Vehicle’s Performance

Keeping your power steering reservoir clean is an essential part of maintaining your vehicle’s performance. Over time, dirt, debris, and contaminants can accumulate in the reservoir, leading to decreased power steering function and potential damage to the system. In this article, we will guide you through the step-by-step process of cleaning your power steering reservoir, ensuring smooth and reliable steering. Let’s get started!

What You’ll Need

Before you begin, gather the following materials:

  • A clean cloth or rag
  • A small siphon pump or turkey baster
  • Power steering fluid
  • A funnel
  • A power steering fluid flush kit (optional)

Step 1: Prepare Your Vehicle

Park your vehicle on a flat surface and turn off the engine. This will ensure your safety and prevent any accidental movements during the cleaning process.

Step 2: Locate the Power Steering Reservoir

The power steering reservoir is typically located near the engine, usually on the driver’s side. Refer to your vehicle’s owner manual or consult online resources to find the exact location if needed.

Step 3: Remove the Reservoir Cap

Before you start the cleaning process, it is crucial to release the pressure in the power steering system. Start by removing the reservoir cap carefully. This will prevent any potential injury and allow air to enter the system during the cleaning process.

Step 4: Drain the Old Fluid

Using a small siphon pump or a turkey baster, carefully remove the old power steering fluid from the reservoir. Take your time during this process to avoid spillage. Dispose of the old fluid properly according to your local regulations.

Step 5: Clean the Reservoir

Once the old fluid is drained, use a clean cloth or rag to wipe the inside of the reservoir. Remove any dirt, debris, or contaminants that may have settled. Be thorough in this step to ensure a clean reservoir.

Step 6: Flush the System (Optional)

If you notice significant contamination in the power steering fluid or want to ensure a more thorough cleaning, you can use a power steering fluid flush kit. This kit connects to the power steering system and flushes out the old fluid while replacing it with fresh fluid. Follow the manufacturer’s instructions to perform the flush correctly.

Step 7: Refill the Reservoir

Now that the reservoir is clean, it’s time to refill it with fresh power steering fluid. Refer to your vehicle’s owner manual to determine the appropriate type and quantity of fluid required. Use a funnel to avoid spillage and ensure a clean refill.

Step 8: Bleed the System

To remove any trapped air in the power steering system, start the engine and slowly turn the steering wheel from lock to lock a few times. This will help bleed the system and ensure proper functioning.

Step 9: Check Fluid Level

Once the bleeding process is complete, turn off the engine and re-check the fluid level in the power steering reservoir. If needed, add more fluid to reach the recommended level.


Q: How often should I clean my power steering reservoir?

A: It is recommended to clean your power steering reservoir every 30,000 to 50,000 miles or as specified in your vehicle’s owner manual. Regular cleaning will help maintain optimal power steering performance.

Q: Can I use any power steering fluid for my vehicle?

A: It is essential to use the power steering fluid specified in your vehicle’s owner manual. Using the wrong fluid may result in system damage and compromised performance.

Q: What are the signs of a dirty power steering reservoir?

A: Signs of a dirty power steering reservoir include difficulty in turning the steering wheel, a whining noise when steering, or fluid leaks. If you experience any of these symptoms, it is advised to clean the reservoir promptly.


Regularly cleaning your power steering reservoir is crucial for maintaining your vehicle’s performance and ensuring smooth steering. By following the step-by-step process outlined in this article, you can easily clean your power steering reservoir and prevent potential damage to the system. Remember to consult your vehicle’s owner manual for specific instructions and recommended maintenance intervals. Keep your power steering system in top condition and enjoy a safe and comfortable driving experience!

Nulon Transmission & Power Steering Flush 300mL | Supercheap Auto
Source Image:

MAPerformance Power Steering Reservoir | 08-15 Mitsubishi Evo X / 09-1
Source Image:

Power Steering Fluid & Stop Leak – 1 Litre | Supercheap Auto Feb 10, 2023Soak all of the parts in the degreaser for 30 minutes or longer. Then scrub everything with a brush to remove any build-up. Rinse everything off with water and reassemble the reservoir. How Do You Know If Your Power Steering Reservoir is Clogged?

You May Also Like