Transmission pans can deteriorate due to several factors, including corrosion from exposure to moisture, road salt, and other environmental contaminants. Over time, this corrosion weakens the metal, leading to the formation of holes or cracks in the transmission pan. Additionally, impacts from road debris or objects can cause physical damage to the pan, compromising its structural integrity. Furthermore, repeated heating and cooling cycles during normal operation can contribute to metal fatigue, eventually leading to failure. Regular inspection and maintenance, including checking for signs of corrosion or damage and replacing the transmission pan when necessary, are essential for ensuring the continued reliability and performance of the transmission system.