Can too much transmission fluid cause sluggish shifting, slippage, and delayed reverse engagement when hot? It's also leaking pretty good. I'm not sure about the history of this transmission as the truck has been inoperable for many years. I had to add about 5 quarts just to make it go. After driving it for about 20 minutes, it started doing all of the above. I pulled out the dipstick while it was running and it shows about 1 1/2 inches above full.
Just driving it around the neighborhood a few times, I noticed that the pan was occasionally dripping. After this longer drive, the leak is much worse now.
