Reasons for squeezing out the oil pump seal in an automatic transmission:
* Excessive Oil Pressure: Typically, excessive oil pressure is caused by a clogged oil filter or a faulty oil pump.
* Seal wear: As the seal ages, the material loses its elasticity and ability to hold oil pressure.
* Deformed Oil Pump Flange: If the oil pump flange is bent or deformed, it may not seal properly against the oil seal, causing a leak.
* Incorrect installation: Improper installation of the seal may result in misalignment or damage, resulting in leakage.
* Faulty Pressure Sensor: A faulty pressure sensor can send an incorrect signal to the Transmission Control Module (TCM), which can cause excessive pressure to build up in the transmission.
* Heat exchanger clogged: A clogged heat exchanger can lead to overheating of the oil and increased pressure inside the automatic transmission.
Possible consequences of squeezing out the oil pump seal:
*Transmission fluid leak
*Low transmission fluid level
* Slipping or jamming of gears
* Damage to other automatic transmission components due to lack of lubrication
Corrective Action:
* Replace the squeezed out oil seal with a new one
* Identify and correct the root cause of excess oil pressure (for example, replace the oil filter or repair the oil pump)
* Check and, if necessary, repair or replace the oil pump flange
* Check that the oil seal is installed correctly
* If necessary, replace the pressure sensor
* Check and clean the heat exchanger