1997 Jeep Cherokee Water leaking onto passenger floorboard

Tiny
TYSONHORLACHER
  • MEMBER
  • 1997 JEEP CHEROKEE
  • V8
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
I have water leaking onto my passenger floorboard after I run the AC for a while.
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I have contacted a dealership service department to try and resolve this problem, but I have not been able to do it yet.
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The dealer gave me a quick fix method and quoted me 4+ hours to have a technician actually pull apart the dash to unclog the condensation line. I followed the dealer's instructions, but the problem was not fixed. It seemed that the condensation line was not clogged at all.
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I think there might be a linkage that is not connected behind the firewall so the water is running out the linkage and following the pipe back inside the vehicle.
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This is a Grand Cherokee Laredo and I have not found a chilton manual that will show the dissasembly of the dash to fix it myself.
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I was thinking I could punch a hole in the floorboard and create a drain myself. If anyone has come across this problem, please give feedback.
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THANKS
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Sunday, August 30th, 2009 AT 9:17 AM

2 Replies

Tiny
SERVICE WRITER
  • EXPERT
Just to verify about the drain. I know you said it wasn't plugged but it was worth writing.

This drain is hard to find, it empties into the frame rail below the pass. Floor. You can pull the blower motor out to see if the box has water. The drain is inside the frame, the way to unstop it is drill a small hole in evap box by the floor board. Find a small long wire and poke it out, im you have a mig welder that wire works great. Get a long piece and fold it over and poke it down the hole in the bottom.

Water leakage DEFINITLY does not happen after rain? If it does, I would look closely at the windsheild and A-pillar, Perhaps the metal has a hole behind a leaking windshield seal. Water would then run down the A-pillar into the floorboard area.
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Sunday, August 30th, 2009 AT 10:28 AM
Tiny
TYSONHORLACHER
  • MEMBER
When I talked with the dealer, he said when I drilled the hole, I could expect to have some water drainage in the floorboard, (up to a quart). I drilled the hole in the condensation resovoir and I used a hanger wire to feel around inside to see if there was a blockage. I had the hanger about 9 inches inside the hole with no resistance. It seemed like it was completely clear.
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The floorboard seems to get the wettest after I have run the AC for over 2 hours in one trip, whether it is raining or not.
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Sunday, August 30th, 2009 AT 5:21 PM

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