Hey, has anyone had a problem with a 1740 engine code reoccurring? The code is for the torqe converter clutch or some other transmission problem. I took it to the dealer a few weeks ago and they found a small leak on a transmission cooler line, they tightened the fitting and added fluid they said they tested the TCC and it was good, and that they couldn't find anything else. About a week later I got the same code it clears and comes back a few days(miles) later. The last time it came in I was on the highway traveling downhill at about 60-65 mph and it had already shifted into overdrive.Any suggestions?