why does my Toyota Corolla E140 (2006-2013) make a whining noise when turning

Solution

1. Preparation

• Gather tools: socket set, wrenches, power steering fluid, and a fluid catch pan.
• Ensure the vehicle is parked on a level surface and turn off the engine.
• Disconnect the battery for safety.

2. Check and Refill Power Steering Fluid

• Sub-steps:
  1. Locate the power steering fluid reservoir.
  2. Remove the cap and check the fluid level; it should be between the “MIN” and “MAX” marks.
  3. If low, add the appropriate power steering fluid (check owner’s manual for specifications).
  4. Replace the cap securely.

3. Inspect and Replace Power Steering Pump

• Sub-steps:
  1. Remove any components obstructing access to the power steering pump (e.g., air intake, covers).
  2. Disconnect the power steering hoses from the pump, using a fluid catch pan to collect any spilled fluid.
  3. Unbolt the pump from its mounting bracket and remove it.
  4. Install the new power steering pump, ensuring it is properly aligned and secured with bolts to the manufacturer's torque specifications.
  5. Reconnect the hoses, ensuring a snug fit to prevent leaks.

4. Inspect and Replace Serpentine Belt (if necessary)

• Sub-steps:
  1. Check the condition of the serpentine belt for cracks or fraying.
  2. If damaged, release the tension on the belt using a wrench on the tensioner pulley.
  3. Remove the old belt and install a new belt, following the routing diagram located near the engine bay.
  4. Release the tensioner to secure the belt.