How to seal a transmission oil leak?

Have a automatic transmission in your car is a wonderful thing, as it makes traffic much less stressful and starting on a hill much safer. Today’s automatic transmissions are becoming more efficient and predictable, so having an automatic transmission installed in your vehicle is probably a no-brainer. However, keep in mind that like everything, there can always be an incident that causes the transmission oil leak of your car, therefore, below we will explain what you need to know regarding the automatic transmission and how to seal a transmission fluid leak.

Drawbacks with automatic transmission

While as you mention the automatic transmission is very good for those who are not fans of manuals and prefer easy work, even the newer models do share some drawbacks.

When they fail it can happen to the point where you can’t get your vehicle to move and often you are left stranded. The reason most transmissions fail and won’t let you move has a lot to do with valve body design and how the valve is used. transmission fluid to operate an automatic transmission.

Another problem with automatic transmissions is that for both new and old, it is very difficult to find a mechanic or shop that knows or is willing to diagnose a problem with the transmission or even work on it. This is often the case because electronically controlled transmissions require very specific computers to access their programs and are necessary to perform most of the diagnostic work.

Realistically, the only thing you can do to monitor the health of your transmission is to regularly check the level and condition of your transmission fluid. Most automatic transmissions have a dipstick to check the transmission fluid level in the rear of the engine compartment.

If you want to know how to do it, you can go to how to check automatic transmission oil without dipstick. What usually happens is that during these fluid level checks, you may notice a low level of transmission fluid. Low oil levels in your transmission may be for one reason: a leak.

Major Transmission Fluid Leak Sites

Transmission fluid usually may leak in 3 placesso it is usually relatively easy to locate the leak and find a quick solution.

The most common leak location in an automatic transmission is from transmission cooler lines. Almost all vehicles with an automatic transmission have a transmission cooler to help regulate the temperature of the fluid in the transmission. The cold is sometimes a separate heat exchanger, or sometimes it is built into the vehicle’s radiator. Either way, it should be easy to locate the cooler lines as they would need to be the only hoses going in and out of the transmission. If you discover a leak in the cooler line, usually at the end, just replacing that line should stop the leak.

Another leak area is of a joint in the transmissionsuch as the valve body gasket if your transmission has an externally mounted valve body. These gaskets can dry out or shrink over time due to old transmission fluid or even normal wear and tear. The last most common leak site is the entry or exit stamp on your transmission.