[catback23]

Best way to find the leak is too look, you can try looking at the general location from under the hood as well as under the car...the leak could also be a heater core leak, the drain for the evaporator and heater core is located on the firewall if memory serves...for your sake I hope it's not a heater core issue, I recently did mine and it was a nightmare at best (more pleasant if your flexible).