Reasons for squeezing oil out of the automatic transmission breather:
* Transmission overheating: Excessive load, insufficient cooling or blocking of the heat exchanger can lead to increased transmission fluid temperature and the formation of excess pressure.
* Excess transmission fluid: Overfilling the automatic transmission with transmission fluid can cause foaming and excess pressure.
* Clogged automatic transmission filter: A clogged filter restricts fluid flow and increases pressure in the automatic transmission housing.
* Faulty seals: Worn or damaged seals in the automatic transmission housing allow fluid to leak out.
* Clogging of the automatic transmission crankcase ventilation system: Clogging of the breather or ventilation tubes creates excess pressure in the automatic transmission housing.
* Damage to the automatic transmission housing: Cracks or holes in the automatic transmission housing can lead to transmission fluid leaks.
* Inadequate transmission fluid specifications: Incorrect transmission fluid may not provide sufficient lubrication and cooling, resulting in heat build-up and overpressure.
Troubleshooting steps:
1. Check transmission fluid level: Make sure the transmission fluid level is correct and does not exceed the specified maximum.
2. Check the automatic transmission seals: Inspect the seal housings for leaks or damage. If necessary, replace worn oil seals.
3. Replace A/T Filter: Install a new A/T filter to ensure proper fluid flow.
4. Check the automatic transmission crankcase ventilation system: Clean the breather and ventilation tubes to make sure they are not clogged.
5. Check the automatic transmission housing: Inspect the automatic transmission housing for cracks or holes. If necessary, repair or replace the damaged housing.
6. Check Transmission Fluid: Make sure the transmission fluid meets the specification required for your automatic transmission.
7. Check the automatic transmission cooling system: Make sure that the heat exchanger and radiator are not clogged and provide adequate cooling of the automatic transmission.
Important: Oil squeezing out of the automatic transmission breather indicates a problem that must be corrected as soon as possible to prevent serious damage to the transmission. If you are unable to fix the problem yourself, have it diagnosed and repaired by a qualified mechanic.