1. Transmission Fluid Pan Gasket: The transmission fluid pan is located at the bottom of the transmission and is sealed with a gasket. If the gasket becomes worn or damaged, it can cause transmission fluid to leak.
2. Transmission Filter O-Ring: The transmission filter is located inside the transmission pan and is sealed with an O-ring. If the O-ring becomes worn or damaged, it can cause transmission fluid to leak.
3. Transmission Cooler Lines: The transmission cooler lines carry transmission fluid from the transmission to the radiator, where it is cooled. If the transmission cooler lines become damaged or loose, it can cause transmission fluid to leak.
4. Input Shaft Seal: The input shaft seal prevents transmission fluid from leaking where the transmission input shaft enters the transmission. If the input shaft seal becomes worn or damaged, it can cause transmission fluid to leak.
5. Output Shaft Seal: The output shaft seal prevents transmission fluid from leaking where the transmission output shaft exits the transmission. If the output shaft seal becomes worn or damaged, it can cause transmission fluid to leak.
6. Axle Seals: The axle seals prevent transmission fluid from leaking where the axles connect to the transmission. If the axle seals become worn or damaged, it can cause transmission fluid to leak.
7. Torque Converter Seal: The torque converter seal prevents transmission fluid from leaking between the torque converter and the transmission. If the torque converter seal becomes worn or damaged, it can cause transmission fluid to leak.
8. Transmission Case: In rare cases, transmission fluid can leak due to cracks or damage in the transmission case itself. This can be caused by impacts or other external factors.
Note: If you suspect a transmission fluid leak in your 2006 Honda Civic, it is important to have it diagnosed and repaired by a qualified mechanic as soon as possible to prevent further damage to your vehicle.
