The air intake for the dash HVAC, located under the cowl on the passenger side, can leak, when the gasket rots out. This happened on my 1997 XJ.The hard part is on the passenger side because the inlet for the heater/AC is in the way, but I think I can get at it with a tube on the caulking gun. Maybe.
The air intake for the dash HVAC, located under the cowl on the passenger side, can leak, when the gasket rots out. This happened on my 1997 XJ.
A section of sheet metal, under the plastic cowl cover, had to be cut out to access the intake. A polyurethane sealant and a gloved hand were used to reseal the plastic intake. It's done by touch.
http://naxja.org/forum/showthread.php?p=246434823