What is this plastic "plunger" thing in my trans pan?
I dropped the pan to change the trans filter in my 03 with 4R70W and there was a 1.5 inch "plunger-like" plastic piece laying in the pan. It has an o-ring on it. I don't know where it came from but I assume it has a purpose. Anybody know what it is or what I'm to do with it? Thanks in advance.