my Toyota Corolla E210 (2019-2024) has a whining noise when turning the wheel, what's wrong?

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and turn off the engine.
• Gather necessary tools and parts.
• Wear safety goggles and gloves for protection.

2. Check and Refill Power Steering Fluid

• Locate the power steering fluid reservoir.
• Remove the cap and check the fluid level; top off with manufacturer-recommended fluid if low.
• Start the engine and turn the steering wheel from lock to lock to circulate the fluid.

3. Inspect and Replace Power Steering Pump (if necessary)

• Tools Required: Socket set, torque wrench, fluid catch pan, power steering fluid.
• Disconnect the negative battery terminal.
• Remove the serpentine belt by loosening the tensioner.
• Disconnect the power steering pump hoses and cap to prevent fluid spillage.
• Unbolt the power steering pump from its mounting bracket and remove it from the engine bay.
• Install the new power steering pump in reverse order, ensuring to torque bolts to manufacturer specifications.
• Reconnect hoses and refill the power steering fluid.

4. Inspect and Replace Serpentine Belt (if necessary)

• Check the condition of the serpentine belt for cracks or wear.
• If damaged, remove the old belt and replace it with a new one, following the belt routing diagram.
• Adjust tension as needed and ensure proper alignment.

5. Final Checks

• Reconnect the negative battery terminal.
• Start the engine and check for any leaks or abnormal noises.
• Test drive the vehicle to ensure the whining noise is resolved.