why does my Honda Civic 9th Generation (2012-2015) have a rough shift when changing gears?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick and remove it to check fluid level.
  2. If fluid is low or dirty, prepare to drain and replace it.
  3. Place a drain pan under the transmission pan and remove the drain plug (if equipped).
  4. Allow the old fluid to completely drain.
  5. Replace the drain plug and tighten it to the manufacturer’s torque specifications (usually around 8-10 ft-lbs).
  6. Use a funnel to refill the transmission with new fluid, ensuring you use the manufacturer-recommended type (typically Honda ATF-Z1 or equivalent).
  7. Recheck the fluid level with the dipstick to ensure it is at the correct level.

3. Inspect and Replace Transmission Mounts (if necessary)

• Sub-steps:
  1. Raise the vehicle securely on jack stands.
  2. Locate the transmission mounts and visually inspect them for cracks or excessive wear.
  3. If mounts are damaged, use a socket set to remove the bolts securing the mounts.
  4. Replace with new mounts, ensuring proper orientation and alignment.
  5. Torque the bolts to the manufacturer’s specifications.

4. Test Drive

• After the fluid change and any necessary replacements, reconnect the negative battery terminal.
• Start the vehicle and allow it to reach operating temperature.
• Conduct a test drive to check for improvement in shifting quality.