Possible reasons for oil leakage through the Kia Sorento automatic transmission dipstick:
1. Transmission overpressure:
*Low transmission oil level
* Clogged oil filter
* Automatic transmission pump malfunction
* Coked oil pan
2. Malfunction of the dipstick seal:
*Damage or deformation of the oil seal
* Incorrect installation of the dipstick
3. Breakdowns in the automatic transmission housing:
* Cracks or holes in the transmission housing
4. Pressure regulator malfunction:
* Pressure regulator failure
* Incorrect adjustment
5. Worn torque converter seals:
* Worn torque converter o-rings
6. Clogged oil passages:
* Metal shavings or other contaminants in oil passages
Consequences of oil leaking through the automatic transmission dipstick:
* Oil leakage and decrease in its level
*Damage to internal transmission components
*Transmission overheating
* Complete automatic transmission failure
Recommended actions:
* Check the transmission oil level. Add oil if necessary.
* Replace the oil filter.
* Check the dipstick seal. Replace it if necessary.
* Contact a qualified auto repair shop. You will need professional help to diagnose and fix other possible causes of oil leaks.