Does repairing the car gearbox still have an impact?
4 Answers
Repairing the car gearbox does not have a significant impact. Below is relevant information: 1. Introduction: The gearbox is a core component of the car. Replacing the gearbox in a new car will depreciate the vehicle's value. 2. Maintenance method: When shifting gears in a manual transmission, be sure to press the clutch pedal all the way down to completely cut off the power, preventing gear collision and grinding during shifting, thereby reducing gear damage. 3. Temperature-related maintenance: During car operation, pay attention to the temperature of the gearbox and any abnormal noises. If the housing temperature exceeds 70-80 degrees, it indicates that some components inside the gearbox are not functioning properly. Stop the car immediately for inspection and promptly address the issue.
I've repaired quite a few car transmissions, and to be honest, there can still be issues afterward. The internal structure of a transmission is intricate, and components like gear sets and clutch plates are difficult to fully restore during repairs. Last time, my friend's automatic car had its transmission repaired—it ran smoothly for the first two months, but then started experiencing jerky gear shifts and even sudden gear drops on the highway. The mechanic said it was due to the newly replaced parts not being properly broken in. The most troublesome part is the control systems, like solenoids—if they aren't thoroughly cleaned during repairs, metal debris can easily remain. It's been three years since the repair, and he still has to change the transmission fluid twice a year for maintenance. If you really need a repair, make sure to find a skilled technician and don’t cut corners with aftermarket parts.
I'm quite familiar with gearbox repairs. Last time, the third-gear synchronizer in my manual transmission car broke, and after the repair, I always felt the gear engagement wasn't smooth. Actually, a major gearbox overhaul is like a major surgery—it's never quite the same as the original factory condition. The main issue is that it's hard to guarantee the assembly precision. Those paper-thin friction plates inside the transmission can easily affect gearshift smoothness if not assembled carefully. Now, my car's low-speed gear changes are noticeably more jerky than before the repair, and fuel consumption has increased by 0.5 liters. If the car is old, it might be better to just replace it with a remanufactured transmission. It's more expensive, but the durability is better.
Gearbox repairs can indeed leave lingering issues, especially for high-mileage vehicles. After my old car's gearbox was repaired, it ran smoothly for the first six months, but later developed a strange whining noise during acceleration. The repair shop diagnosed it as improperly adjusted differential bearing clearance - precision inevitably suffers after disassembly and reassembly. Now, the gear lever vibrates noticeably during cold starts. Another headache is the used car value; last appraisal slashed 8,000 yuan off the price. If repair is unavoidable, insist the mechanic uses a torque wrench for bolts and pays extra attention during bearing installation.
