I took my car in for 'B' service back in February. After picking up my car I noticed the driver side windshield wiper hadn’t been changed. That got me to wondering if anything was done at all. All of a sudden the car began to jerk and hesitate as I was accelerating and at a constant speed. It felt like bad gas. I waited until it was at a quarter tank of gas and put in some gas treatment. Then I ran out the rest and filled up at a different gas station. The problem was still there, if not getting worst. The only thing to do now was to take it back to the dealer. The first day it was in the shop, they called me and said they could not duplicate the problem. I was worried I was stuck with something that could not be repaired. I told the service advisor (who is a great guy) that was unacceptable (hoping that would make them look closer for the problem). I also asked them to take it out on the road. Later the next day I received a call informing me that they had a transmission guy take it out and drove it at different speeds and he was able to duplicate the problem. I was happy about that but couldn't understand how or why the transmission was involved. I haven't worked on any cars for at least twenty years. I thought it was bad compression, bad spark plugs or it just needed a tune up. Turns out there’s a part on the transmission that needs replacing. I can't remember if it is a sensor or some kind of switch. Anyway, they didn't have it so I have to go back in a week or so. I'm happy they found the problem but it's a fifty mile drive to the dealership in heavy traffic. If you know the 91 fwy from Newport to Riverside, you know what I mean. I thought I better let you guys know about this problem just in case it’s happening to others. This just goes to show you that putting these cars on sensor readers doesn’t tell them everything.