why does my Toyota Highlander shake when driving at high speeds?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Use wheel chocks to prevent movement.

2. Tire Inspection and Inflation

• Tools Required: Tire pressure gauge, air compressor
• Check each tire's pressure using the tire pressure gauge.
• Inflate tires to the recommended PSI as indicated on the door jamb sticker.
• Inspect tires for uneven wear patterns, bulges, or damages.

3. Wheel Balancing

• Tools Required: Tire balancing machine
• Remove the wheels from the vehicle using a socket set.
• Mount the wheels on the tire balancing machine to check for imbalance.
• Add wheel weights as required to achieve balance.
• Reinstall the wheels, ensuring to torque lug nuts to the manufacturer's specifications (typically around 80-100 ft-lbs).

4. Suspension Inspection

• Tools Required: Jack, jack stands, wrench set
• Lift the vehicle using a jack and secure it with jack stands.
• Inspect suspension components visually for any signs of wear, such as torn bushings or leaks in the shock absorbers.
• Replace any worn components with new parts as necessary.

5. Driveline Inspection

• Tools Required: Jack, jack stands, wrench set
• Inspect the drive shafts and CV joints for any signs of wear or damage.
• Ensure all bolts are properly tightened to manufacturer specifications.
• Replace any defective driveline components.