This is a very common failure that most times goes unnoticed until the transmission starts acting up from low fluid level. When these fail they can really tear up the transmission bad enough the fluid is just pouring out and that is where it gets expensive. In this video I show you step by step what is causing all of this and just how to fix it. Even if you don't plan on attempting this repair it is good to know what to keep an eye on as potential failures. Hope this helps.