What problems will occur if the car's transmission is broken?
3 Answers
When the car's transmission is broken, the symptoms include noticeable jerking during gear shifting, difficulty in engaging gears, lack of significant speed increase during acceleration, abnormal noises from the transmission, and severe engine shaking when starting the car. It needs to be replaced promptly. Reasons for timely transmission replacement: During the transmission's operation, the engine mount protects the transmission from bumps. It is a rubber product that prevents the vibrations generated during the transmission's operation from being transmitted to the car body. After prolonged use, the transmission mount will age, and once the mount hardens, its ability to filter vibrations decreases. Therefore, it must be replaced promptly once aging occurs. Consequences of not replacing the transmission: After aging occurs, it will not affect driving safety in the short term, but prolonged failure to replace it can lead to malfunctions in the car's components, which will impact driving safety.
As a veteran driver with over 20 years of experience, I know all too well the signs of transmission trouble. The most obvious is when the car jerks violently during gear shifts, especially in automatic models - that lurch feels like being kicked. During acceleration, the tachometer surges but the speed doesn't increase, which indicates slipping. Reverse gear is the worst - often engaging but the car won't budge, requiring multiple attempts. The metallic grinding noises from the engine bay are downright terrifying, especially louder when climbing hills. Once my car's oil pan leaked, losing most transmission fluid, causing the entire housing to overheat and smoke - the repair bill gave me sleepless nights for two weeks. I recommend regular fluid checks and immediate servicing upon hearing unusual noises.
After working in the repair shop for ten years, I've handled countless transmission failure cases. The most common issue is harsh shifting, which usually occurs when the transmission computer detects a solenoid valve malfunction. When clutch plates slip, the engine revs without power transfer, reducing transmission efficiency by 40% and causing significant fuel consumption. Some vehicles get stuck in a fixed gear, typically caused by blocked oil passages in the valve body. More challenging is bearing fragmentation leading to poor gear meshing - even apprentices can recognize that distinct clicking noise. Hydraulic control unit leaks cause unstable oil pressure, often resulting in complete reverse gear failure. Nowadays, mechanics dread CVT transmission jobs the most, as chain wear-induced steel belt slippage is particularly troublesome, usually requiring complete unit replacement.
