Engine overheating due to an automatic transmission can be caused by the following reasons:
1. Transmission fluid problems:
*Low or insufficient transmission fluid
* Contaminated or old transmission fluid
*Transmission fluid leak
2. Malfunctions in the gearbox itself:
* Worn gears and bearings
* Clogged or damaged oil passages
* Faulty valve body or electronic control module
3. Problems with the cooling system:
* Faulty transmission radiator
* Clogged or damaged coolant hoses
* Insufficient fluid flow through the cooling system
4. Electrical problems:
* Short circuit or break in the wiring associated with the gearbox
*Faulty transmission temperature sensor
5. Other factors:
* Severe operating conditions such as towing a trailer or driving over rough terrain
* Wrong choice of gearbox operating modes
* Recent transmission repair performed with errors
Symptoms of transmission overheating:
*Overheat light or Check Engine light comes on
* Slipping or jerking when shifting gears
*Hum or vibration when driving
* Burnt oil smell
*Elevated engine coolant temperature
Consequences of gearbox overheating:
*Damage to internal gearbox components
* Failure of the gearbox and the need for major repairs
* Engine overheating due to heat transfer from gearbox
Precautions:
* Check the level and condition of the transmission fluid regularly.
* Change transmission fluid according to manufacturer’s recommendations.
* Avoid harsh operating conditions or misuse of the gearbox.
*Consult a qualified mechanic if you notice any signs of transmission problems.