Should a Faulty Torque Converter Be Repaired or Replaced?
2 Answers
Repair first, then replace if necessary. Modern automotive torque converters typically feature a welded, non-separable housing structure. Internally, aside from the one-way overrunning clutch of the stator and the lock-up clutch pressure plate, there are no interacting components, making them highly reliable in operation with minimal failure rates. The functions of a torque converter are as follows: 1. Low-speed torque amplification: Enhances vehicle starting and low-speed acceleration (self-adjusting). 2. Driving the oil pump: The oil pump is always driven by the torque converter. 3. Lock-up clutch engagement: Enables direct power transmission. 4. Flywheel function: Serves as the engine flywheel.
I pondered over this issue for a long time and felt it depends on the specific situation. Once my car's torque converter failed, so I went to the repair shop to ask about it. The technician said there are blades, oil pumps, and such inside this thing, and it's very difficult to disassemble and repair once broken because the components are so precise. Repairing it might cost more money and be unreliable. I did the math: replacing it with a new part would cost around five to six thousand, while repairing it might cost two to three thousand and require repeated hassle. If the repair isn’t done right, even the transmission could be affected. In the end, I just replaced it with a new one—less hassle and more peace of mind. Don’t skimp on this expense for daily driving; regular checks of the transmission fluid can prevent major issues. After the replacement, the car felt much better to drive, with smoother power delivery. Anyway, when it comes to cars, safety comes first—don’t cut corners to save a few bucks.
