Problem Description and Possible Solution
If the HVAC (heater) housing is not properly sealed at the bulkhead (firewall), water can leak into the passenger compartment. Foam sealant should be used to seal any gaps and the evaporator drain tube can be modified to prevent further water entry.
Average mileage: 99,869 (44,000–150,000)
23 people reported this problem
passenger side floor/carpet is always wet. changed windshield twice,resealed it twice. now I notice bottom of heater box inside has a water stain,not sure if its my a/c or a leak
sounds like the problem i have. Took it to a shop, had them replace heater core hoses, clamps, and heater core. 3 months later, it is leaking again. Also, they could not get my defrost to function properly and was issued a refund.