why does my Toyota Highlander XU70 (2020-Present) shake when I accelerate

Solution

1. Preparation

• Gather tools and safety equipment.
• Ensure the vehicle is parked on a flat surface and engage the parking brake.
• Disconnect the negative battery terminal for safety.

2. Inspect and Inflate Tires

• Sub-steps:
  • Inspect all tires for uneven wear, bulges, or damage.
  • Use a tire pressure gauge to check the pressure of each tire.
  • Inflate tires to the manufacturer's recommended pressure (usually found on the driver's door jamb).
• Tools Required: Tire pressure gauge, air compressor.

3. Balance Wheels

• Sub-steps:
  • Remove the wheels using a socket set.
  • Mount the wheels on a wheel balancer to check for imbalance.
  • Adjust weights as necessary to achieve balance.
• Tools Required: Wheel balancer, socket set.

4. Inspect Suspension Components

• Sub-steps:
  • Visually inspect control arms, ball joints, and bushings for signs of wear or damage.
  • Replace any worn or damaged components.
• Tools Required: Jack and jack stands, socket set, pry bar.

5. Examine Driveshaft and CV Joints

• Sub-steps:
  • Inspect the driveshaft for any signs of damage such as dents or cracks.
  • Check CV joints for play or torn boots.
  • Replace damaged driveshaft or CV joints as necessary.
• Tools Required: Jack and jack stands, socket set, pry bar.

6. Reassemble and Test

• Sub-steps:
  • Reinstall wheels and torque lug nuts to manufacturer specifications (usually 75-80 ft-lbs).
  • Reconnect the negative battery terminal.
  • Conduct a test drive to ensure the shaking has been resolved.
• Tools Required: Torque wrench.