As you might know, I have gone through 2 transfer cases in a matter of a few months. The only conclusion I can come to is when they updated the ECM to add the knock sensor, all the problems began with the AWD system. Fast forward to last week, they replaced the catalytic converter at 50% of what it would cost and I told them to reflash the ECM----they said it would be an additional $129. The car was done, no more CEL and they said they reflashed but did not charge me. When I got home I checked the work order and they did NOT flash the ECM. I called up and he put me on hold and said they would not and could not flash the ECM because I have the latest firmware. I tried several times but it was a no go.My concern is when they replace the transfer case, they said they'll replace again, but that's it. If it fails they will not replace a third time----I simply can't see it working this time. So I came across this and wanted to get your feelings on what to do---is it worth it doing myself? Is the dealer full of crap?