When running the air conditioner on my 2004 Nissan Frontier I get cold water leaking from below the dash onto the floor (or onto the passenger’s feet) on the passenger side. It will stop if I turn the A/C off. It will momentarily increase upon accelerating from a stop, indicating to me that the water is sloshing around in some sort of tank and overflowing. What is involved in repairing this problem.
You need to clean the drain out. It is located under the car directly forward of the a/c under the dash. Thats the engine side of the firewall.