My 2005 Dodge Grand Caravan stopped changing gears... It sat four a week, and when I started it up to take it to the shop, it's now changing smoothly. I drove it a couple hundred miles, and it's shifting normally, actually smoother than when I bought it. 268k on the tranny, 138K when I bought it.

Any recommendations. I'd hate to buy a tranny when it was a relay.

 

You posted in the pickup section. We have different transmissions than you. It sounds like it could be an electrical problem.