Leak under dash

[Tangerine_sky]

I have a leak under the passenger side of the dash, right up by the cooling unit and intake unit. It is water and possibly some antifreeze. I would greatly appreciate some help on diagnosing this problem.

[480sx]

Your heater core has sprung a leak.

[vancouverbc]

tie off the hoses at the firewall. engine coolant circulates through heater core to heat interior of car(when interior fan is on).