The car started bucking after driving 3 hrs at 20-30 mph. It then just started revving while in gear like the tranny was totally slipping. It was shut off for about 15 minutes - then driven again. It drove for about 20 minutes, then started shuttering and slipping bad again. The stomp test has worked fine in the past, always got a 1444. I'm not positive, but I think the woman that ownes it said the computer said something about transmission program at one point. I'm wondering if the DME fried or just overheated thus giving the weird stomp code test and also tranny program problems.