I had almost the same problem when i had my 2000 Ranger, off and on... i took it into a tranny shop and they put it on the computer. Revieled nothing. They didn't wanna tear it apart to find out that it was like brand new in there... so they told me until it became a constant everyday thing, they really couldn't do anything. They even had it two days and it only acted up on the second day. I had just had the tranny serviced 10k miles before than too. It might not be a bad idea to take it in to a tranny shop, and have it looked at. Definately wouldn't hurt any.
2006 Ranger FX4
Back in Black
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