why does my Toyota RAV4 XA40 (2013-2018) make a whirring noise when accelerating

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery for safety.

2. Inspect and Replace Drive Belt (if damaged)

1. Remove the engine cover (if applicable) using a socket set.
2. Release tension on the drive belt using a belt tensioner tool.
3. Remove the old drive belt by slipping it off the pulleys.
4. Inspect the pulleys for damage or wear.
5. Install the new drive belt by routing it according to the belt routing diagram.
6. Reapply tension to the belt using the tensioner and ensure it is correctly seated on all pulleys.
7. Reinstall the engine cover if removed.

3. Check and Replace Transmission Fluid (if necessary)

1. Locate the transmission fluid dipstick (if equipped) or the fill plug.
2. Check the fluid level and condition; it should be a bright red color and not smell burnt.
3. If low or dirty, drain the old fluid through the drain plug using a suitable pan.
4. Replace the transmission filter if applicable by removing the transmission pan (ensure to replace the gasket).
5. Refill with the correct type of transmission fluid to the proper level.

4. Inspect and Replace Wheel Bearings (if faulty)

1. Lift the vehicle and remove the wheel using a socket set.
2. Inspect the wheel hub for signs of play or noise by spinning it.
3. If faulty, remove the brake caliper and rotor.
4. Remove the wheel hub assembly by unbolting it from the steering knuckle.
5. Replace the wheel bearing with a new one using a bearing press.
6. Reassemble the hub, rotor, and caliper and torque to factory specifications.