SOURCE: leak onto floor passenger side from neck of ac drain through firewall
it sounds like your heater core is busted. you will have to go under the dash to get to it and replace with a new one
SOURCE: 2005 Jeep Grand Cheerokee Sunroof Leak
have the sunroof gasket replaced
or buy one online cheap at sunroof doctor.com
hope2help shack
SOURCE: Water coming in to front passenger floor when it rains
The heater/airconditioner box under the dash has a drain hose to allow condensation to drain when the air conditioner is running. If this hose gets plugged, rain may accumulate in this box also (if it's raining heavily), as it comes in through the fresh air intake.
Look on the engine side of the firewall, probably on the passenger side, for a hose coming through the firewall that is not connected to anything. It is usually short, has a 90 degree bend, and the open end is down. Make sure that the end of this hose is not plugged.
SOURCE: Water Leak in Passenger Side Floor Vent Area after car wash
Unless this happens in the rain as well, I would not worry about it. Likely in the car wash, far more water is coming in than the normal drain system can handle, therefore causing it to overflow. If you do have a drain obstruction, find the drain hose (small right angle hose on firewall passenger side) and roll it in your fingers to clear it.
SOURCE: 2003 Jeep Cherokee Leaks Water on Passenger Side
Just had ours fixed, look on engine side of firewall, if the outlet pipe in passenger well is a 3/4 inch long pipe projecting forward into engine bay with no tubing leading down towards the ground, the problem is water comes out trickles back with pressure in engine bay to foam seal under the pipe and enters footwell inside car.
Take a piece of rubber tubing and hose clamp it on and direct it down towards ground in engine bay and the problem will be solved!
We have gone from soaking carpet to no leak at all with this simple fix.
Rgds Martin
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