I just changed filter and oil on the auto trans of my 1997 Escort. Now it feels like it slips a little before going into drive or reverse. Oil level checks out ok. Did nothing except the oil/filter change. When I was pouring the oil out of my drain pan into a larger container I noticed there was a small spring in there, about 2 1/2 long by about 1/3" in diameter. I have no idea where this spring came from as it doesn't look familiar. I'm beginning to think it might've fallen out of the valvebody, but from where? This spring very well might've been in my drain pan, but like I said, it doesn't look familiar. I didn't remove the valve body either, just removed the filter and put a new one back on. Any tips at this point would be greatly appreciated.