Bought truck 2007 in July. Noticed about 3 weeks ago carpet on front passenger side is wet. No odor, mechanic gave it a quick lookover, could not find cause. Weather is not a factor. Any ideas? No warranty. Otherwise runs well.

 

I had the same issue. There is a similar thread on here with a part number for a rubber elbow that goes on the AC drain tube. In fact I think a TSB is out that describes the issue and how to install the elbow. You have to take out the splash guard and loosen the transmission tube to get access then the elbow just presses on. I installed this and it resolved my issue. Good luck.