Question about 2005 Jeep Grand Cherokee
Water is coming in to the front passenger side 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.
Posted on May 11, 2009
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Posted on Jan 02, 2017
It sounds as if the drain line from the vent is plugged. You'll need to get under the car (jack stands please ) to locate. In your forward vent where air comes in for your AC or just Vent rain will obviously get in to it. There is a drain hole at the bottom of this to allow water to flow out. With time from dead bugs, leaves, road dirt... this vent can plug. Under the car locate this vent line, place a small wire up within it to remove the blockage. After doing you may want to both test and flush by use of a garden hose. If there is a lot of accumulated debris it might plug back right away and you'll have to clear again.
I hope this may have helped,
Posted on Oct 25, 2009
Based on what you are saying I would bet you have a body seam leaking. Remove as many things as you can to get a look at the rf corner inside the car. Close the doors and have someone spray the car down with a hose and see whats leaking if possible. If the hose dosen't produce any results try a high pressure car wash. One other thing you may want to check is the heater box drain tube(this should be a short rubber hose coming out the bottom of the heater box, its what leaves the puddle of water on the ground when your a/c is on) If this is restricted or plugged water will back up in your heater bax and drain onto your floor. This will mostly only happen when using the a/c. Good luck!
Posted on Mar 14, 2010
Testimonial: "Thanks, I will try that. Had the windshield replaced several years ago, may get the man back out to check the gasket. "
SOURCE: rain water leak
DodgeDakotas dot com has a lot of postngs about water under the Dakota's passenger side carpeting. My own 2005 is leaking, too. Main culprits to check: AC drain tube @ firewall (I think that some Dakotas had to have a 90-degree tube added to the outside end so that water wouldn't blow back into the cab. Great desing, Dodge. Rear window seal; Along the right-side window/roof pillar; the gromment in the passenger side door for a wire pathway. Sounds like some get this fixed under warranty - others meet w. resistance. Good Luck!
Posted on Jul 23, 2009
It could be a plain old fashioned leak around the windscreen - difficult to find but try sitting in the car while somebody plays a water hose over the windscreen.
It could also be a blocked drain in the ventilation system - fresh air is normally drawn in to a car via vents at the bottom of the windscreen. These vents normally lead to a "box" like structure where any water that enters the vents drops to the bottom and then drains away via a short hose that runs to somewhere underneath the car.
If the drain outlet or hose gets blocked (by leaves for example), it can cause the box to fill with water to the point where it can leak out in to the passenger area.
Hope this helps you find the problem.
Posted on Nov 16, 2009
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