Main points
- A leak in the pump or its lines can cause fluid loss, leading to a decrease in steering assistance.
- A burning smell from the engine compartment can indicate overheated power steering fluid due to a failing pump.
- While replacing a power steering pump is possible for experienced DIYers, it’s recommended to consult a qualified mechanic to ensure proper installation and avoid potential safety hazards.
Maintaining a smoothly functioning power steering system is crucial for a comfortable and safe driving experience. However, persistent power steering pump failures can be a frustrating and costly issue. If you’re repeatedly asking yourself “why does my power steering pump keep going out,” this guide will delve into the underlying causes and provide practical solutions to prevent future failures.
Signs of a Failing Power Steering Pump
Before exploring the reasons behind power steering pump failures, it’s essential to recognize the telltale signs:
- Stiff or Difficult Steering: A failing pump will make it harder to turn the steering wheel, especially at low speeds or when parking.
- Whining or Groaning Noises: As the pump struggles to circulate fluid, it may produce a high-pitched whine or groan.
- Leaking Fluid: A leak in the pump or its lines can cause fluid loss, leading to a decrease in steering assistance.
- Burning Smell: A burning smell from the engine compartment can indicate overheated power steering fluid due to a failing pump.
Common Causes of Power Steering Pump Failure
Understanding the root causes of power steering pump failures is vital for preventing future occurrences:
#1. Fluid Contamination
Contaminated power steering fluid is a major culprit in pump failures. Dirt, debris, and moisture can enter the system through leaks or infrequent fluid changes. Contaminated fluid can clog the pump’s valves and damage its internal components.
#2. Worn or Loose Belts
In vehicles with belt-driven power steering pumps, a worn or loose belt can reduce the pump’s ability to provide adequate pressure. This can lead to overheating and premature failure of the pump.
#3. Air in the System
Air trapped in the power steering system can cause cavitation, where air bubbles form and damage the pump’s components. Air can enter the system during fluid changes or repairs.
#4. Overheating
Excessive heat can degrade the power steering fluid and damage the pump’s seals. Overheating can occur due to low fluid levels, a faulty cooling system, or extended periods of high-stress driving.
#5. Component Failure
Individual components within the power steering pump, such as the bearings, gears, or seals, can fail due to wear and tear or manufacturing defects. These failures can lead to internal leaks and reduced pump efficiency.
#6. Electrical Issues
In some vehicles, power steering pumps are electrically controlled. Faulty wiring, sensors, or control modules can disrupt the pump’s operation and cause failures.
#7. Lack of Maintenance
Neglecting regular maintenance, such as fluid changes and belt inspections, can contribute to power steering pump failures. Proper maintenance helps prevent fluid contamination, overheating, and worn components.
Troubleshooting and Prevention
To prevent recurring power steering pump failures, follow these troubleshooting and prevention tips:
- Check Fluid Regularly: Check the power steering fluid level and condition regularly. Change the fluid according to the manufacturer’s recommendations.
- Inspect Belts: Inspect the drive belt for wear, cracks, or looseness. Replace it if necessary.
- Bleed the System: If air enters the system, bleed it by following the manufacturer’s instructions.
- Avoid Overheating: Monitor the engine temperature and avoid extended periods of high-stress driving.
- Use the Right Fluid: Use the type of power steering fluid specified by the manufacturer.
- Get Regular Inspections: Have your vehicle inspected by a qualified mechanic to identify potential issues early on.
Beyond Conclusion: Additional Tips for Power Steering Maintenance
Maintaining a reliable power steering system requires proactive care:
- Use a Power Steering Flush Kit: Periodically use a power steering flush kit to remove contaminants and restore fluid quality.
- Inspect Hoses and Lines: Look for leaks, cracks, or damage in the power steering hoses and lines. Replace any faulty components.
- Avoid Over-Tightening: When tightening the power steering pump, avoid over-tightening as it can damage the pump’s housing.
- Monitor Steering Effort: Pay attention to any changes in steering effort or resistance. Promptly address any noticeable differences.
Frequently Asked Questions (FAQs)
Q: Can I replace the power steering pump myself?
A: While replacing a power steering pump is possible for experienced DIYers, it’s recommended to consult a qualified mechanic to ensure proper installation and avoid potential safety hazards.
Q: How often should I change the power steering fluid?
A: The frequency of power steering fluid changes varies by vehicle and driving conditions. Refer to your vehicle’s owner’s manual for the recommended interval.
Q: What are the risks of driving with a failing power steering pump?
A: Driving with a failing power steering pump can make steering difficult, especially at low speeds or when parking. This can increase the risk of accidents and damage to the vehicle.