Here are some of the problems that can occur with a lock-up torque converter:
* shuddering - This is the most common problem, and it occurs when the impeller and turbine do not lock together smoothly. This can cause the vehicle to vibrate or shake.
* slipping - This occurs when the impeller and turbine cannot lock together at all. This can cause the engine to rev up without the vehicle moving, or it can cause the vehicle to lose power.
* failure to engage - This occurs when the lock-up torque converter does not engage at all. This can cause the vehicle to lose power or it can prevent the vehicle from moving at all.
If you are experiencing any of these problems, it is important to have your vehicle inspected by a qualified mechanic.
Here are some of the things that can cause a lock-up torque converter to fail:
* Low fluid level - The lock-up torque converter needs a certain amount of fluid to operate properly. If the fluid level is too low, the torque converter can overheat and fail.
* Dirty fluid - Dirty fluid can clog the passages in the torque converter and prevent it from operating properly.
* Worn parts - The lock-up torque converter contains a number of moving parts that can wear out over time. If these parts wear out, the torque converter can fail.