Quick summary
- Holes or cracks in the hoses or lines can allow fluid to escape, leading to a drop in pressure and circulation issues.
- If the pump is not circulating fluid, you’ll hear a whining noise or the steering wheel will be difficult to turn.
- If air is trapped in the system, bleed it by turning the steering wheel from lock to lock with the engine running.
Power steering fluid is essential for smooth and effortless steering. When it fails to circulate, you’ll encounter difficulties turning the steering wheel. This issue can be caused by various factors, ranging from low fluid levels to faulty components. Identifying the underlying cause is crucial for effective troubleshooting.
Symptoms of Power Steering Fluid Not Circulating
- Heavy steering: The steering wheel becomes difficult to turn, especially at low speeds or when parking.
- Whining or squealing noises: As the pump struggles to circulate fluid, it may produce loud noises.
- Leaking fluid: Look for leaks around the power steering pump, hoses, and lines.
- Burning smell: Overheating fluid due to lack of circulation can emit a burning odor.
- Steering wheel vibration: Fluid starvation can cause the steering wheel to vibrate while driving.
Causes of Power Steering Fluid Not Circulating
1. Low Fluid Level
The most common cause is low fluid levels. Check the power steering fluid reservoir regularly and top it off as needed.
2. Leaking Hoses or Lines
Holes or cracks in the hoses or lines can allow fluid to escape, leading to a drop in pressure and circulation issues.
3. Faulty Power Steering Pump
The pump is responsible for circulating the fluid. A malfunctioning pump can fail to generate sufficient pressure or may become clogged.
4. Air in the System
Air bubbles in the system can block fluid flow and cause erratic steering.
5. Clogged Filter
A dirty or clogged power steering filter can restrict fluid circulation.
6. Faulty Pressure Relief Valve
The pressure relief valve regulates fluid pressure. A malfunctioning valve can cause excessive pressure, leading to fluid leaks or pump failure.
7. Electrical Problems
Electrical issues, such as a faulty power steering motor or wiring harness, can prevent the pump from operating properly.
Troubleshooting Power Steering Fluid Circulation Issues
1. Check Fluid Level
- Open the power steering fluid reservoir cap and inspect the fluid level.
- If it’s low, top it off with the recommended fluid type.
2. Inspect for Leaks
- Look for leaks around the pump, hoses, and lines.
- Fix any leaks by tightening loose connections or replacing damaged components.
3. Test Power Steering Pump
- Start the engine and turn the steering wheel from lock to lock.
- If the pump is not circulating fluid, you’ll hear a whining noise or the steering wheel will be difficult to turn.
4. Bleed the System
- If air is trapped in the system, bleed it by turning the steering wheel from lock to lock with the engine running.
- Repeat this process until the fluid flows smoothly without air bubbles.
5. Replace Filter
- Locate and replace the power steering filter if it’s clogged.
6. Check Pressure Relief Valve
- Inspect the pressure relief valve for proper operation.
- If it’s faulty, replace it.
7. Diagnose Electrical Problems
- Check for loose connections or damaged wires in the power steering system.
- If necessary, consult an auto electrician for further diagnostics.
Importance of Maintaining Power Steering Fluid Circulation
Proper power steering fluid circulation is essential for:
- Safe and effortless steering: Circulating fluid provides hydraulic pressure to assist in steering.
- Reduced wear and tear: Fluid lubrication prevents excessive friction and wear on steering components.
- Extended pump life: Adequate fluid flow keeps the pump cool and prevents overheating.
Wrap-Up: Restoring Power Steering Fluid Circulation
By addressing the underlying causes and following the troubleshooting steps outlined above, you can restore power steering fluid circulation and enjoy effortless steering. Regular maintenance, such as fluid checks and filter replacements, can prevent future issues and ensure optimal performance.
Top Questions Asked
1. Why should I check my power steering fluid regularly?
Regular fluid checks help identify and address low fluid levels before they cause circulation problems.
2. What type of fluid should I use in my power steering system?
Refer to your vehicle’s owner’s manual for the recommended power steering fluid type. Using the wrong fluid can damage the system.
3. How often should I bleed my power steering system?
Bleeding is typically necessary after replacing components or if air enters the system. Consult your owner’s manual for specific bleeding instructions.
4. Can I drive with low power steering fluid?
Driving with low fluid is not recommended. It can lead to steering difficulties and damage to the power steering system.
5. What are the signs of a faulty power steering pump?
Symptoms include heavy steering, whining noises, and fluid leaks.