Water Leak Due to HVAC Case Not Sealed at Bulkhead on Dodge Dakota

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.

Problem Data
RepairPal Verified
Average mileage: 99,869 (44,000–150,000)
6 model years affected: 1996, 2001, 2002, 2003, more2004, 2006
24 people reported this problem
Viewing 1 - 8 of 8 comments
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.