I picked up my '93 auto from the service department at the local Acura dealer today. I had an electrical drain and a bad alternator, which were both resolved. When I left it ran fine until just under 40, when it acted like there was some kind of speed limiter, coughing until the speed decreased (and the TCS light was flashing), when it would run until it hit the speed again. This happened constantly, and was the same in 2nd, 3rd and Drive. The car ran perfectly when I dropped it off, and it's never done anything like this before. I'm bringing the car back in on Thursday, but I'm hoping someone may have an idea what is going on. It seems likely that they somehow caused the problem.