wet spot on drivers side floor

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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, wet spot on drivers side floor in Past Cadillac Vehicle Discussion; 2000 deville base. Have noticed a "cold wet" spot on the floor in the middle of the carpet on the ...
  1. #1
    rsr2216 is offline Cadillac Owners Member
    Automobile(s): 2003 Cadillac deville base
    Join Date
    Aug 2007

    wet spot on drivers side floor

    2000 deville base. Have noticed a "cold wet" spot on the floor in the middle of the carpet on the drivers side just in front of the seat. First time thought it was from a bottle of water that fell over. Went on a 300 mile trip this past week and noticed it again. It is cold to the touch. Before I get it up on ramps, is there any drain lines for condensate for the rear a/c that might be plugged? Or maybe a rubber floor plug under the carpet for some reason? Sounds stupid but I have dealt with heater core problems in the past and this is not in the same location or temp range. Thanks for any help or suggestions.

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 65500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: wet spot on drivers side floor

    The A/C condensate drain tube is a rubber elbow affair stuck in/through the lower firewall edge just about under where a passenger's left heel would rest. Get the car up on a lift - it may be hidden behind a flap of rubberized sound insulation. There are several threads every early summer with this problem - in several of those is the diagram of where the drain is on your car. Google "cadillac forums deville air conditioning drain hose" or something close, preceded by "cadillac forums ....".

    Also, does your car have a cabin air filter ??? They can clog and get stinky after a few years............

  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Re: wet spot on drivers side floor

    Here ya go. #35 (lower right)

  5. #4
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): two 02 DHS's, 03 SLS, 95 Sedan DeVille, 89 Coupe DeVille
    Join Date
    Feb 2004

    Re: wet spot on drivers side floor

    do you have a sunroof?

    if yes - it could be the drain tube is plugged

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