why does my Toyota RAV4 make a whining noise when turning the steering wheel

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a level surface with the parking brake engaged.
• Allow the engine to cool if recently run.
• Disconnect the battery to prevent any electrical shorts.

2. Check and Replace Power Steering Fluid

• Tools Required: Funnel, clean rag
• Steps:
  1. Locate the power steering fluid reservoir.
  2. Remove the cap and wipe the dipstick with a clean rag.
  3. If low or dirty, drain the old fluid using a turkey baster or similar tool.
  4. Refill with the manufacturer-recommended power steering fluid.

3. Inspect and Replace Power Steering Pump

• Tools Required: Socket set, wrench set, torque wrench, power steering pump puller
• Steps:
  1. Remove the serpentine belt by loosening the tensioner.
  2. Disconnect the power steering pump from the fluid lines (use a catch pan for any leaking fluid).
  3. Unbolt the power steering pump from its mounting bracket.
  4. Install the new power steering pump, ensuring all mounting bolts are tightened to the manufacturer's specified torque.
  5. Reconnect the fluid lines and refill the system with power steering fluid.

4. Inspect and Replace Serpentine Belt (if needed)

• Tools Required: Socket set
• Steps:
  1. Check the serpentine belt for cracks, fraying, or wear.
  2. If damaged, remove it by releasing the tensioner and sliding the belt off the pulleys.
  3. Install the new belt following the routing diagram typically located near the engine bay.
  4. Ensure proper tension on the new belt.