If you are going to change the fluid. That's a good time to go ahead and change the filter, and gasket. First, does the fluid look dark, and does it smell burnt. If so, you might have more issues. Changing the filter is easy. Unbolt the pan. Lower it carefully, even after draining, it may still have fluid. Look for particles in the pan. A little isn't bad. Then looking at the trans with the pan off, there's the filter. 3 screws, and it's off. Put new filter on, make sure the trans pan is flat around the bolt holes. They can be tapped down with a hammer. I then glue the new gasket to the panwith 3m weatherstrip adhesive, and re install. I like type F fluid. Remember to check fluid level, idling in Neutral. It won't read correctly in park.
