2007 Cadillac CTS water standing

Tiny
LAKESHORE CT
  • MEMBER
  • 2007 CADILLAC CTS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 40,000 MILES
I have water that is accumulating under the drivers seat. At first a thought it was a water leak around the sun roof. The cas is under warranty and has been at the dealership two of the last three weeks but they say they can not find a leak. Said a window or sunroof may have been cracked open when the car was washed. Also said they took the carpet out and dried it for two days, but it was still very damp when I picked it up. Car is beginning to get a musty smell. Drove it for 2 hours today with a/c on and when I got home it was soaking wet under drivers seat. Could the a/c possibly be causing this problem?
It does not get wet in front of the drivers seat, just underneath it and in the back floorboard if you drive for a while. Dealership seems to be clueless. Thanks
Saturday, July 10th, 2010 AT 8:53 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Hi lakeshore ct. Welcome to the forum. It sounds like the AC drain is blocked but that would not be common for a three year old car. That's probably why no one has checked it. It IS common for the carpet to still be damp when they put it back in the car. It can take days for it to dry completely and no one has that kind of time. Some things to try include throwing your kids under the dash, then running the car through a car wash and watching to see if one of them gets wet! On a more practical note, after running the air conditioning for 20 - 30 minutes on a humid day, stop and let the engine idle for a few minutes, then look underneath between the two front tires to see if water is dripping onto the ground. It shouldn't take long to get a 6" - 12" puddle. If there isn't much of a puddle and / or the air inside feels clammy, suspect the drain tube is blocked. Unblocking it is usually a matter of squeezing the rubber hose under the hood. If that doesn't work, it must be removed to dislodge debris inside the spout the tube was connected to.

Caradiodoc
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Monday, July 12th, 2010 AT 1:06 AM

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