Problem solved! I purchased the output speed sensor from a jeep dealership part #4800879, Mopar. The part cost 23.30 plus tax. It took me about 10 minute to install without any special tools. I kept the battery disconnected for about 20 mintes to clear any codes. The check engine light is gone and the jeep shifts like it was brand new. I might go ahead and replace the input sensor to see if gas mileage improves even more. Thanks for the assist and please pass the info on.
Tuesday, June 1st, 2010 AT 4:24 PM