1998 XJ, 4.0, Auto 4x4

My Jeep leaks when it rains! Here's what I've noticed. When it rains, it leaks on the passenger side front floor where you would expect the heater core to leak, only it's not the heater core. It's rain water. It runs down onto the floor mat, not under the carpet, so I'm trying to figure out where it's coming from. Any ideas? Is there a drain port somewhere that might be stopped up?

 

Your windshield is most likely leaking. I'd check out the seal around the outside to make sure its still in good shape and look around the edge on the interior for any signs of discoloration around the top of the dash/edge of the windshield.

 

plugged cowl drain

 

Windshield is a very common problem. Could also be roof, or the seal around the antenna.

 

id get in and have someone spray it with a hose.. see if you can find any leak that way?

 

The cowl drain will allow water to run into the passenger side floor if it is plugged. This is a well known problem with some Jeep models. Pull the cowl off and check that the drain is clear, run a stiff wire down it to force any leave debris out and you should be good.

 

^X3. I had the same issue with my '97. I Pulled the cowl vent panel off and stuck my shop vac has far over to the passenger side as it could go. Problem solved. You can't see as much as you would hope when you pull that panel.

 

Mine does the same thing. Check the gasket for the blower motor through the firewall. I used a spray bottle with some water easy find.

 

Thanks. I suspected some kind of drain was plugged. I took the cowl off, but you can't really see anything so I just hit with compressed air and leaves went flying out so tomorrow morning I'm going to get into it a little more.