Taking Care of Our Tranny

You may recall that some friends of ours from church gave us a car last fall (related posts: "Driving Me Car Crazy" and "It's Transportation"). It's a '94 Chevy Corsica: 4-door, automatic transmission, straight 6-cylinders:

Lately it doesn't want to shift into gear right away, after we've let it sit for awhile, such as in leaving work. I first noticed this last Friday afternoon. I checked the transmission fluid, but the level was okay. It does shift into gear after a little while, and once we rev the engine a little bit.

As we contemplate how to get it fixed, I browsed over to Howstuffworks "How Automatic Transmissions Work". There's so much going on behind the scenes!