00 XJ Passenger Floor Draft

[jay79cj7]

Hey guys,
So my wife tells me today that she's got freezing cold air blowing on her feet as we are cruising down the highway. (Its COLD here in N IL.) Its coming from under the dash on the passenger side, and proportional to speed. Its not too strong at 30 mph, but up at 65, its blowing pretty hard. The air coming through on the driver side is warm like its supposed to be. We've got a long drive ahead of us for Christmas and I need to get this figured out and fixed. I don't see anything obvious and don't have much time to look into it. Anybody have any experience with this, or knowledgable advice?
Thanks, and Merry Christmas,
J

 

[SteelHeadz]

Check the gasket between the heater box and windshield cowl. it's underneath that Grille mounted between the windshield and hood.. Check the gasket for the heater core lines on the firewall as well. you should be able to see it under the hood.