Whole vehicle gets damp as soon as engine runs - JeepForum.com

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post #1 of 5 Old 06-08-2001, 11:59 AM Thread Starter
donkey boy
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Join Date: May 2001
Location: Richmond, VA
Posts: 12
Whole vehicle gets damp as soon as engine runs

A friend of mine has a annoying problem with his ZJ Orvis Edition 1994 or 95. Since they changed the a/c the whole car gets damp as soon as the engine is turned on (which automatically also turns on the ventilation) There is no difference whether the a/c is on or off. It's so bad that humidity drips off the the windows also in the back.
The dealer has no clue where this extreme moisture is coming from.
Any ideas/experience?

- Michael -
2001 WJ
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post #2 of 5 Old 06-08-2001, 04:08 PM
Web Wheeler
Join Date: Mar 2001
Location: Alger
Posts: 1,452
Sounds like the dealer needs to tear into their work on the AC. That and check the heater. I'm just talking out my, uh, elbow, but I'd look for unhooked pipes.
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post #3 of 5 Old 06-09-2001, 11:52 PM
pirk 90xj
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Join Date: Mar 2001
Posts: 75
sounds heater core related (but I'm just a mechanic I wouldn't know)

90 XJ 4.5 "teraflex long arm/rubicon/rough country
34x10.5x15 swampers/Quick Loc
k&n air h-d radiator
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post #4 of 5 Old 10-23-2013, 11:23 AM
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1994 ZJ 
Join Date: Oct 2013
Location: Portland
Posts: 13
On the passenger side of the vehicle feel the floor and under the dash. The heater core is tucked under the glove box by the fire wall. If the heater core gets a hole in it or fails it will leak coolant into the cab and send moister through the vents causing every thing to get damp and the windows to fog up.
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Last edited by BackRoad4X4; 10-24-2013 at 11:27 AM.
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post #5 of 5 Old 10-23-2013, 04:07 PM
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1997 ZJ 
Join Date: Feb 2012
Posts: 2,744
you need some rust holes in the floor to let all that moisture out hahahaha
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