2000 Chevrolet Blazer - Transmission Oil Pan Gasket

Replacing a Transmission Pan Gasket

The transmission pan gasket is located between the transmission oil pan and the transmission housing, sealing the gap between the pan and transmission to prevent fluid leaks. The gasket is commonly made of a synthetic rubberized material or cork, and can wear out over time or be damaged by excessive pressure inside the transmission. A properly functioning transmission pan gasket prevents transmission fluid from escaping, and maintaining transmission fluid levels is essential for the transmission's optimal operation and longevity. A detiorirated, damaged, or failing transmission oil pan gasket can result in transmission fluid leaking or seeping through the gasket, and you may notice red fluid on the ground or around the lip of the pan. Low transmission fluid levels can cause transmission slippage, problems shifting into gear or taking off from a stop, and if ignored, can eventually cause transmission damage and failure. If you notice signs of transmission fluid leaks, such as spots under your vehicle or low transmission fluid levels, you may have a failing transmission pan gasket. Be sure to consult your service manual before attempting this repair on your own, as some modern vehicles with drain plugs or service ports in the transmission pan or housing may need to be filled from underneath the vehicle with a pump. If you need to replace your transmission pan gasket, shop O'Reilly Auto Parts, where we carry new transmission pan gaskets for a complete transmission repair. You can also learn more about how to check transmission fluid levels with our helpful article.