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.
Water Leak Due to HVAC Case Not Sealed at Bulkhead on Dodge Grand Caravan
Average mileage: 126,553 (50,000–240,000)
29 people reported this problem
2002 Dodge Grand Caravan 98,000 mi, Visitor
vehicle is leaking from underneath the passenger side of my 2002 chrysler van. the front passenger floor is always wet.
2003 Dodge Grand Caravan 50,000 mi, Visitor
any time we use the air conditioner, water leaks onto the floor of the passenger side. carpet is always soaked!
2005 Dodge Grand Caravan 154,000 mi, Visitor
HVAC leaks on the passenger side carpet.
2001 Dodge Grand Caravan 118,000 mi, Visitor
when air conditioner on in summer the passenger side rug and carpet get soaked and has a white residue.
2002 Dodge Grand Caravan 135,000 mi, Visitor
It is wet on the floor board of the passager side
2002 Dodge Grand Caravan 145,000 mi, Visitor
It is not fixed
2003 Dodge Grand Caravan 85,000 mi, Visitor
Leaks in heavy rain
2001 Dodge Grand Caravan 138,000 mi, Visitor
Front passanger side carpeting is always wet.
When the A/C is on there is a leak from the firewall area. My guess is a misalignment of heater core as my dashboard once had to be removed to track down an electrical issue. This problem has not been fixed.