2006 Jeep Grand Cherokee Rainwater soaked carpets

Tiny
JEEPSTER5278
  • MEMBER
  • 2006 JEEP GRAND CHEROKEE
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
I believe my problem is only rainwater and not an A/C or heater core issue, although not 100% positive. I do not run the A/C often and water does not overtly smell like antifreeze. I bought the Jeep from a dealer's lot about a year ago in 2013 so I do not know much about the vehicle history. I do have a warranty from the dealer but not sure what all is covered (I will have to check on that, but not sure if something like that would be covered). I notice when it rains that I get wet floorboard carpets on the driver's side, passenger side, and a bit in the rear on both sides as well. I have a sunroof (I asked my local mechanic to clean out the drain tubes when I had my first oil change done); I don't know if that could be the sole culprit or not. I cannot access the interior pillar where the door grab handle is (must be a specific thin walled socket because all of my standard sockets are too wide to fit into the space provided. It's a 7/16 bolt I believe, but there is not a lot of room to get any sockets I have to access them). I don't know if it could be the cowl somehow or something to do with the air intake vent or what. Could it be a gasket (none seem dry rotted) or windshield seal? All the electronics work. For now, so I don't know. I have started to wet vac my carpets almost every time it rains so not to get mold, rust or other irreversible or costly damage, but this is becoming tedious and very time consuming (I only have on-street parking). I do not know if I can afford a long and timely diagnosis from my local mechanic as from what I understand it can be very difficult to even find the source of where the water is penetrating the interior. Any suggestions, experience or advice to help diagnose or resolve this problem would be much appreciated as this is becoming an increasingly frustrating problem for me. Thank you for very much for your time, research and interest into helping me to resolve this recurring issue.

Thank you again,


James
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Saturday, August 2nd, 2014 AT 9:51 AM

3 Replies

Tiny
HMAC300
  • EXPERT
Norlly that is a sign of the heater drain plugged, try running a wire up from the bottom you aren't going to damage anything and twirl it around the pic I have doesn't show it so it cold be under car near taransmission, or from firewall. I'd bet this is it and not draining. If not that then the windshield is your probable source of the leak.
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Saturday, August 2nd, 2014 AT 10:07 AM
Tiny
JEEPSTER5278
  • MEMBER
Thanks for the response and information. What is the Heater Drain? Is that the Heater core? I'm a little mechanically inclined. Enough to understand when something is explained to me, but by no means am I able to truly diagnose something by myself. Could you expand a bit more on what you mean. I'll have to crawl underneath Jeep to see if I can find what you are talking about. Will I notice an obvious wet spot near transmission or firewall? It sounds like an easy enough fix, but I am not quite sure what I am looking for. Would it be clearer pictured in a Chilton or Haynes manual? I've been meaning to get one for the Jeep anyways. And if so what would I reference in one of those manuals? What am I putting a wire up into (is it just an exposed drain tube)? If I could supply any more information to make your diagnosis easier just let me know. Thank you again, I really appreciate your time and help!
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Monday, August 4th, 2014 AT 8:14 PM
Tiny
HMAC300
  • EXPERT
The drain should be exposed buyout will have to look hard for it because they give no pics other than what I've already sent. When you use your a/c it removes humidity from the air and it drops off the evaporator into the heater box hence it has to drain out because over time it gets more and more- your rainwater thing. Like I said in first reply you are not going to hit anything by running the wire in it you don't have to go far into it you'll probably get water on you as well. Running a/c and getting water from it is a natural occurance and the more humid and hotter it is the more water.
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Tuesday, August 5th, 2014 AT 6:03 AM

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