why does my Genesis G70 make a clunking sound when I shift gears

Solution

1. Preparation

• Ensure the vehicle is parked on a flat surface and the engine is turned off.
• Gather tools and parts required for the repair.

2. Check and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, funnel, socket set, torque wrench.
• Sub-steps:
  1. Locate the transmission dipstick (if applicable) or drain plug on the transmission pan.
  2. If needed, drain the old transmission fluid into a suitable container by removing the drain plug.
  3. Replace the drain plug and torque it to the manufacturer's specified value.
  4. Use a funnel to refill the transmission with new fluid, ensuring the correct type is used as specified in the owner’s manual.
  5. Start the engine and cycle through the gears to circulate the new fluid, then recheck the fluid level and top off if necessary.

3. Inspect and Replace Transmission Mounts

• Tools Required: Socket set, torque wrench, pry bar.
• Sub-steps:
  1. Safely lift and support the vehicle using jack stands.
  2. Locate the transmission mounts and inspect for cracks or wear.
  3. If damaged, remove the old mounts by loosening the bolts with a socket set.
  4. Install new mounts and torque the bolts to the specified manufacturer’s settings.
  5. Lower the vehicle and check for noise during gear shifts.

4. Inspect and Replace Driveshaft Components

• Tools Required: Socket set, torque wrench, U-joint removal tool (if needed).
• Sub-steps:
  1. Lift and secure the vehicle; remove the driveshaft by loosening the bolts at both ends.
  2. Inspect U-joints for play; if excessive play is detected, replace the U-joints.
  3. Reinstall the driveshaft and torque the bolts to the manufacturer's specifications.
  4. Test drive the vehicle to ensure the clunking sound is resolved.