Air can get trapped in your power steering pump, causing noise and difficulty steering. This guide walks you through simple steps to bleed the air out and restore proper function. With patience and the right techniques, you can fix this common issue yourself.
Key Takeaways
- Understanding the problem: Air in the power steering system can cause noise, difficulty steering, and potential damage.
- Preparation is key: Gather necessary tools and ensure the engine is cool before starting.
- Properly locate the bleed screw: Find the bleed screw or valve to release trapped air effectively.
- Method varies: Different techniques include manual bleeding, using the power steering pump, or turning the steering wheel.
- Safety first: Always wear gloves and eye protection, and work in a safe environment.
- Troubleshooting: If issues persist, check fluid levels, hoses, and consult a mechanic if needed.
Introduction
If your steering feels heavy, noisy, or you notice difficulty turning your wheel, trapped air in the power steering pump could be the culprit. Air in the system reduces hydraulic pressure, making steering less responsive. The good news is, bleeding the air out is a straightforward process that you can do yourself with some basic tools and patience. This guide will show you how to get air out of your power steering pump safely and effectively, restoring smooth, effortless steering.
Tools and Materials Needed
- Power steering fluid (check your vehicle’s manual for the correct type)
- Wrench or socket set (to loosen fittings or bleed screw)
- Clear plastic tubing (optional, for bleeding)
- Drain pan or container (to catch fluid)
- Clean rags or towels
- Protective gloves and safety glasses
- Owner’s manual (for specific procedures)
Step 1: Prepare Your Vehicle
Check the Fluid Level
Start by parking your vehicle on a level surface. Turn off the engine and let it cool down for a few minutes. Open the hood and locate the power steering reservoir. Check the fluid level and top it up if necessary, using the recommended power steering fluid. This ensures you won’t run out of fluid during the bleeding process.
Visual guide about How to Get Air Out of Power Steering Pump
Image source: cimg3.ibsrv.net
Visual guide about How to Get Air Out of Power Steering Pump
Image source: cimg1.ibsrv.net
Ensure Safety
Wear gloves and safety glasses to protect against fluid splashes. Make sure the vehicle is turned off and the parking brake is engaged.
Step 2: Locate the Bleed Screw or Valve
Identify Bleed Points
Most vehicles have a bleed screw or valve on the power steering pump or the reservoir. Refer to your owner’s manual if unsure. If your vehicle lacks a dedicated bleed screw, you will use alternate methods described below.
Prepare for Bleeding
If needed, loosen the bleed screw slightly. Keep a drain pan underneath to catch any fluid that may escape.
Step 3: Bleeding the Power Steering System
Method 1: Manual Bleeding with the Engine Off
- Ensure the steering wheel is centered.
- Loosen the bleed screw slightly.
- Start the engine and let it idle at idle speed.
- Turn the steering wheel from lock to lock slowly, about 10 times.
- Watch for air bubbles escaping from the bleed screw.
- Tighten the bleed screw once the air bubbles stop.
This method allows trapped air to escape as the fluid circulates under pressure.
Method 2: Using the Power Steering Pump
- Start the engine and turn the steering wheel from lock to lock smoothly.
- Repeat several times, about 15-20 turns, to help push air out of the system.
- Check the fluid level periodically and top off as needed.
Method 3: Continuous Pump Method
- Some vehicles benefit from repeatedly running the engine and turning the steering wheel while adding fluid.
- Do this until no more air bubbles appear in the fluid.
Step 4: Check for Proper Operation
Once the air appears to be out, tighten the bleed screw securely. Start the engine again and observe the steering. It should feel smooth and quiet without any whining or heavy resistance. Turn the steering wheel from lock to lock to ensure the system is fully purged of air.
Step 5: Final Checks and Maintenance
- Recheck the fluid level and top off if necessary.
- Inspect hoses and fittings for leaks or damage.
- Clean any spilled fluid with a rag.
- Drive the vehicle for a few minutes to ensure everything operates smoothly.
Additional Tips and Tricks
- Always use the correct power steering fluid specified by your vehicle manufacturer.
- If your steering feels stiff even after bleeding, double-check fluid levels and look for leaks.
- For electronic power steering systems, consult your manual as the bleeding process differs.
- Perform regular maintenance to prevent air from entering the system, such as replacing hoses or fixing leaks promptly.
Troubleshooting Common Issues
- Persistent noise or stiff steering: May indicate low fluid levels or leaks. Check and refill fluid, inspect hoses.
- Fluid foaming or bubbles after bleeding: Ensure the system is properly sealed and that no air enters the reservoir.
- Leaks around fittings or pump: Tighten fittings or replace damaged hoses.
Conclusion
Getting air out of your power steering pump is a simple process that can save you time and money. By following these steps carefully, you can restore smooth and quiet steering. Regular maintenance and prompt repairs will keep your steering system functioning perfectly for miles to come. If problems persist, don’t hesitate to seek professional help to avoid further damage.
Remember:
Patience and attention to detail are key. With the right approach, you’ll have your power steering system burring smoothly in no time.

