If it is an automatic and you were charged for a clutch replacement I would be talking to the law, automatics do not have clutches.
However if you mean they rebuilt the transmission and replaced the converter because it was failing that would be different. It does have a lock-up clutch in it.
As to what is wrong? It could be many things, they may not have repaired it as well as they should have, or it could be something totally different. The CEL can come one for a multitude of issues, from a loose gas cap to misfiring cylinders, from a bad sensor to a bad engine. What it basically means is that the computer sees data that it thinks is bad, that data could be from the engine, transmission even something like a loose gas cap can turn it on.
The dealer tech will scan it, then try to determine what is actually wrong based on what information the code and other data tells him.
Saturday, May 20th, 2017 AT 9:00 PM