Possible reasons why oil leaks from the automatic transmission:
* Damage to the transmission housing: Cracks or holes in the housing may cause oil leakage.
* Faulty crankcase gasket: A worn or damaged crankcase gasket can cause oil to leak from the transmission pan.
* Seal damage: Seals on the transmission shafts prevent oil from leaking out. If they are worn or damaged, oil may leak.
*Oil Overflow: Too much oil in the transmission may cause it to leak through the dipstick hole or other openings.
* Clogged Breather: The breather is the valve that allows air to escape from the transmission. If the breather is clogged, pressure inside the transmission can build up and force oil out.
* Worn or damaged valves: Valves inside the transmission regulate oil flow. Worn or damaged valves can cause oil leakage.
* Pump fault: The transmission pump creates oil pressure. A faulty pump may not produce enough pressure, causing oil to leak.
* Torque Converter Problems: The torque converter is the device that transfers torque from the engine to the transmission. Problems with the torque converter can lead to oil leaks.
Troubleshooting steps:
1. Locate the leak: Start the engine and inspect the transmission for visible leaks.
2. Check the oil level: Measure the gearbox oil level using a dipstick. Low oil level may cause a leak.
3. Check the condition of the gaskets and seals: Inspect the crankcase gasket and seals for wear or damage.
4. Flush or replace breather: Flush or replace the breather if it is clogged.
5. Contact a Mechanic: If you cannot determine the cause of the leak or fix it yourself, contact a qualified mechanic.