Reasons for overheating of the automatic transmission torque converter:
*Lack of transmission fluid: Low fluid levels can lead to oil starvation and overheating.
* Contaminated transmission fluid: Contaminants can clog oil passages, restricting fluid circulation and causing overheating.
*Faulty oil pump: If the oil pump is faulty, it cannot circulate fluid properly, resulting in overheating.
* Damaged lock-up slip: The lock-up slip, which is designed to lock the torque converter when a certain speed is reached, can become stuck in a slipping position, causing temperatures to rise excessively.
* Faulty Friction Discs and Damper: Worn or damaged friction discs or damper can create additional friction leading to overheating.
* Stuck Shift Valve: A stuck shift valve can cause the gears to shift untimely, which can cause the torque converter to slip and overheat.
* Faulty transmission cooling system: If the cooling system is not working properly, it cannot dissipate heat from the torque converter, resulting in overheating.
Symptoms of automatic transmission torque converter overheating:
*Transmission warning light comes on: This may indicate excessive transmission temperature.
* Slipping or slipping gears: An overheated torque converter may not provide enough pressure to shift gears.
*Discoloration of transmission fluid: Overheated fluid may darken or turn black.
* Burnt Oil Smell: Overheated transmission fluid may have a burnt oil smell.
* Excessive noise or vibration: Overheating can cause excessive noise or vibration when shifting gears.
Consequences of overheating of the automatic transmission torque converter:
*Damage to friction discs and damper
* Damage to automatic transmission bearings and gears
* Reduced transmission fluid life
* Premature failure of automatic transmission
Measures to eliminate overheating of the automatic transmission torque converter:
* Check the level and condition of the transmission fluid.
* Clean or replace the automatic transmission oil filter.
* Check and replace the oil pump if necessary.
* Check and repair or replace lock slip if necessary.
* Check and, if necessary, replace friction discs and damper.
* Check and replace faulty switch valves if necessary.
* Check and repair or replace the transmission cooling system if necessary.