Symptom guide
Power Steering Noise
Common causes of whining, groaning, or squealing noises when turning the steering wheel.
Quick answer
Power steering noise can come from low fluid, air in the system, pump wear, belt slip, rack issues, or electric assist faults.
Most likely causes
- Low power steering fluid
- Air in hydraulic system
- Power steering pump wear
- Slipping belt
- Steering rack leak
Basic driver checks
- Check fluid only if the vehicle uses hydraulic steering.
- Look for red or amber fluid leaks.
- Listen for belt squeal.
- Notice if steering becomes heavy.
DIY diagnostic path
- Use only the correct fluid type.
- Do not overfill.
- Keep hands and clothing away from belts.
- If steering effort changes suddenly, stop and inspect.
Common mistakes
- Holding the wheel hard against full lock
- Adding the wrong fluid
- Ignoring belt noise
What to tell the mechanic
Report whether noise happens cold, hot, at full lock, or only while parking.