Transmission repair involves diagnosing and fixing issues within a vehicle's transmission system. Common problems include slipping gears, delays in shifting, strange noises or vibrations, and leaks. A skilled mechanic will perform a thorough inspection and determine the root cause of the problem, which could be due to worn-out components or a faulty sensor. Depending on the extent of the damage, repairs may include a simple fluid change, replacing a damaged seal, or a complete overhaul of the transmission. Regular maintenance and timely repairs can extend the life of the transmission and help prevent expensive breakdowns.