why does my Toyota Highlander make a loud clunk when shifting gears

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is turned off.
• Gather necessary tools and parts.
• Disconnect the battery to prevent any electrical issues during repairs.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick and remove it.
  2. Check the fluid level; if low, add the manufacturer-recommended transmission fluid.
  3. If the fluid is dark or burnt, drain the transmission fluid completely.
  4. Replace the transmission filter if applicable.
  5. Refill with fresh transmission fluid, ensuring that it meets the specifications for the Toyota Highlander.

Tools Required:

• Funnel
• Wrench set
• Transmission fluid

3. Inspect and Replace Transmission Mounts

• Sub-steps:
  1. Raise the vehicle using a jack and secure it with jack stands.
  2. Locate the transmission mounts and inspect them for cracks or excessive wear.
  3. If mounts are damaged, unbolt the old mounts using a socket set and replace them with new ones.
  4. Torque the bolts to the manufacturer’s specifications.

Tools Required:

• Socket set
• Torque wrench

4. Inspect Driveshaft and Axles

• Sub-steps:
  1. Examine the driveshaft for any signs of damage or looseness.
  2. Check the CV joints and axle boots for wear or leaks.
  3. If any components are damaged, replace them as necessary.
  4. Ensure all fasteners are tightened to the manufacturer’s specifications.

Tools Required:

• Socket set
• Torque wrench