thats not gonna happen, just went through round TWO of my problem, the tube exits out the front of the firewall, dead center at the top of the transmission housing, almost over the bell housing. Nothing short of removing the engine will let you get to it from outside. Better yet, the tube passes through the firewall, and you CAN NOT see it because of teh sound/heat insulation. THe water runs down this aluminum covered stuff and drips on the ground right under the passenger seat area.
I just had to have my dealer remove the entire lower dash/console heat exchange box to unclog mine...... a quarter had somehow fallen in the heat ducts, worked its way down the the drain, and blocked it off. So I have a $1000 quarter, I'm going to have it mounted as soon as I can afford it
The normal leaves/debris built up over 3-4 years and formed a perfect seal, and the torrential downpours the last few weeks totally
Fought with dealer and Chrysler over covering this, BAD design to not have any exterior access to the drain. If I had, I could have at least popped the quarter out of the way and solved the problem..... Dealer did an OK job with this, but I was mad and being a bit of a jerk at first.....
Good luck, and make sure your problem is not a leak.