I have some experience with this exact model and problem. It's really hard to see if it's the timing chain cover gasket or the water pump seal is leaking, especially since several bolts pass through the water pump, tc cover, and into the water jacket. My leak turned out to be the timing chain cover seal, via one of the waterpump bolts.
I had to get a camera down next to the pump to see this properly, video here: http://www.youtube.com/watch?feature=player_embedded&v=p84ttgXCRX8
Hopefully this will save someone from replacing the water pump/seal seal only to have the problem return quickly. (Tip:, be sure to use sealant on the bolts as well, I missed this step in the repair manual the first time and had to re do it.)
Friday, October 5th, 2012 AT 9:08 PM