my Toyota RAV4 XA40 (2013-2018) has a high-pitched noise when driving

Solution

1. Preparation

• Gather tools and parts needed for inspection and repair.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Inspect and Replace Brake Components

1. Remove Wheel

   • Loosen lug nuts with a lug wrench.
   • Lift the vehicle using a jack and secure with jack stands.
   • Remove the lug nuts and take off the wheel.

2. Inspect Brake Pads and Rotors

   • Remove the caliper bolts using a socket set.
   • Carefully detach the caliper and suspend it with a bungee cord (do not let it hang by the brake line).
   • Inspect brake pads for thickness; replace if they are below 3 mm.
   • Check rotors for scoring or warping; replace if necessary.

3. Replace Brake Pads and Rotors (if necessary)

   • Install new brake pads into the caliper bracket.
   • If replacing rotors, remove the old rotor by removing the retaining screws, if applicable.
   • Install the new rotor and secure it with screws.
   • Reattach the caliper and torque bolts to the manufacturer's specifications (usually around 25-35 ft-lbs).

3. Check and Replace Serpentine Belt

1. Inspect the Serpentine Belt

   • Look for cracks, fraying, or signs of wear.
   • If damaged, proceed to replace the belt.

2. Remove the Old Belt

   • Use a belt tensioner tool to relieve tension on the serpentine belt.
   • Carefully slide the belt off the pulleys.

3. Install the New Belt

   • Route the new belt according to the diagram located in the engine compartment.
   • Release the tensioner to apply tension to the new belt.

4. Test Drive

• Reinstall the wheel and lug nuts, lowering the vehicle back to the ground.
• Conduct a test drive to ensure the noise has been eliminated.