my Toyota Corolla E210 (2019-2024) power steering makes a whining noise, what’s wrong?

Solution

1. Preparation

• Tools Required: Socket set, wrench set, fluid catch pan
• Park the vehicle on a level surface and ensure the engine is off.
• Disconnect the battery to prevent any electrical issues while performing repairs.

2. Inspect and Replace Power Steering Fluid

• Remove the power steering fluid reservoir cap.
• Use a fluid catch pan to drain old fluid from the reservoir.
• Inspect the fluid condition; if it’s dark or contaminated, proceed to flush the system.
• Refill with the manufacturer-recommended power steering fluid (consult owner's manual for specifications).

3. Inspect and Replace Power Steering Pump

• Tools Required: Torque wrench
• Remove the drive belt from the power steering pump.
• Disconnect the power steering lines using appropriate wrenches.
• Unbolt the power steering pump from its mounting bracket.
• Install the new power steering pump, ensuring it is properly aligned.
• Reconnect the power steering lines and tighten to the specified torque.

4. Bleed Power Steering System

• Refill the power steering fluid reservoir to the recommended level.
• Start the engine and turn the steering wheel from lock to lock several times to remove air from the system.
• Check fluid level again and add if necessary.