why does my Volvo XC60 EPS pump whine when turning

Solution

1. Preparation

• Gather tools and materials:
  • OBD-II scanner
  • Socket set
  • Torque wrench
  • Power steering fluid
  • Clean rags
• Ensure the vehicle is parked on a level surface with the engine off.

2. Fluid Inspection and Replacement

1. Locate the power steering fluid reservoir.
2. Remove the reservoir cap and check the fluid level.
3. If low, top off with the manufacturer-recommended power steering fluid.
4. If the fluid is dark or contaminated, drain the old fluid by removing the return hose from the EPS pump and allowing it to flow into a container.
5. Refill the reservoir with fresh fluid until it reaches the appropriate level.

3. Inspect and Repair EPS Pump

1. If leaks are found, tighten any loose connections or replace damaged hoses.
2. Remove the EPS pump by loosening the mounting bolts and disconnecting the electrical connector.
3. Inspect the pump for internal wear by checking the bearings and motor.
4. Replace the EPS pump if any internal damage is detected, following manufacturer specifications for installation.
5. Reconnect the electrical connector and mount the pump securely, torquing the bolts to the manufacturer's specifications.

4. System Bleeding

1. Start the vehicle and turn the steering wheel from lock to lock several times to help purge any air from the system.
2. Check the fluid level again and top off if necessary.
3. Inspect for any leaks during this process.