Reasons why oil may press through the automatic transmission breather:
* Excessive pressure in automatic transmission:
* Wear or damage to the automatic transmission pump
* Clogged hydraulic unit or oil filter
* Pressure regulator malfunction
* Low oil level in automatic transmission:
* Leaks from seals, gaskets or pipes
* Insufficient filling of the box
* Temperature increase in automatic transmission:
* Towing heavy loads
* Slipping or prolonged driving in low gears
* Cooling system malfunction
* Foaming of oil in automatic transmission:
* Air entering the system
* Using the wrong type of oil
* Wear or damage to the automatic transmission breather:
* Breather clogged
* Damage to the diaphragm or breather valve
* High oil level in automatic transmission:
* Box overflow when changing oil
* Condensation during cold weather
* Steam separator malfunction:
* Some automatic transmissions have a steam separator, which is designed to separate air and foam from the oil
*A faulty steam separator can cause overpressure in the system
Consequences of oil pressure through the automatic transmission breather:
* Oil leakage from the breather can lead to a drop in the oil level in the automatic transmission.
*Low oil levels can cause increased friction and wear on transmission components.
* Excessive pressure in the automatic transmission can damage seals, seals and other components.
* Oil foaming can impair transmission lubrication and cooling.