my Toyota Highlander shakes when accelerating what could be wrong

Solution

1. Preparation

• Gather all necessary tools and parts.
• Park the vehicle on a flat surface and engage the parking brake.
• Disconnect the battery if working on any electrical components.

2. Inspect and Balance Tires

• Sub-steps:
  1. Remove the wheel covers if equipped.
  2. Check tire pressure and inflate to the recommended PSI.
  3. Inspect for any visible damage or uneven wear.
  4. Take the vehicle to a tire shop for balancing if necessary.

3. Check Suspension Components

• Sub-steps:
  1. Lift the vehicle using a hydraulic jack and secure it with jack stands.
  2. Inspect control arms, bushings, and sway bar links for play or damage.
  3. Replace any worn components with OEM or high-quality aftermarket parts.
  4. Reassemble and lower the vehicle.

4. Inspect Driveshaft and CV Joints

• Sub-steps:
  1. Raise the vehicle and secure it.
  2. Visually inspect the driveshaft for cracks or bends.
  3. Check CV joints for torn boots or excessive play.
  4. Replace damaged driveshaft or CV joints as necessary.

5. Check Engine and Transmission Mounts

• Sub-steps:
  1. Visually inspect mounts for cracks or excessive wear.
  2. Use a pry bar to check for movement.
  3. Replace mounts if they show signs of failure.

6. Wheel Alignment and Balance

• Sub-steps:
  1. After completing repairs, take the vehicle to a professional alignment shop.
  2. Ensure that the alignment is within factory specifications.

Tools Required:

• Hydraulic jack and jack stands
• OBD-II scanner
• Tire pressure gauge
• Pry bar
• Socket set
• Torque wrench

Parts Required:

• Tires (if damaged)
• Suspension components (control arms, bushings)
• Driveshaft or CV joints (if damaged)
• Engine or transmission mounts (if damaged)

Estimated Repair Time: 3-5 hours

Safety Warnings:

• Always wear safety glasses when working under the vehicle.
• Ensure vehicle is securely lifted and supported before working underneath.