Well i have had my truck for about a year and the past few months my carpet on the driver side is always wet. i dont know where it is coming from but there are no holes in the floor boards so idk where it is coming from has anyone had this happen to them?

 

If you're having to add coolant it's likely the heater core. If you don't have to add any it's probably the A/C drain stopped up.

 

Or the third brake light, or the rear slider where the roof trim comes in.....

 

well i checked its not the real window or the brake light its right under my drivers side floor mat.