Question about 2003 Cadillac CTS

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A/C water leak, passenger side Where is the drip pan located?

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  • Anonymous Aug 23, 2008

    There seems to be foam insert under the glove box in a shallow compartment but I can't believe that is supposed to handle all the condensation. I didn't have this problem in previous years and I am assuming a drain line is clogged but I haven't had the time to dissassemble under the glove box. If someone knows the solution I would welcome a tip.



    david@freeborg.com

  • Anonymous Nov 17, 2008

    Entire rear passenger side floor carpet is drenched. The carpet is wet to saturation from the lower vent under the passenger seat to the rear seat. even soaked thru the rubber bottomed floor mats!!!

    HELP!!! I had heard something about a TSB relating to this but no I cant find it.

    rschmid@suddenlink.net for answers thanks


  • Anonymous Mar 29, 2009

    I have a similar problem with a 2003 cadillac cts. The water drips from the bottom area of the glove compartment. If you would stick your hand under and feel around, there is a removable panel ( two small bolts and one star screw) there , you will fell the sponge on the other side of the panel is wet. I removed this panel and ran the air conditioner and place a large mirror on the floor and shine a flash light up but did not see any water dripping.
    The Driver side has a similar panel, I removed that also but saw nothing, not even the canister. But the out side pipes from the AC show the canister leads in the hood under ther driver side.
    Any way I looked under the car and found the drain hose. It is located under the driver seat area. I tried fishing a coat hanger through it and it went a long way up. If you look on the side panel where the parking brake is located you will see this hose going to the top of the hood. You will need to depress the parking brake for a better view. I tried the Ac bot no condensation water came throug.
    I late found a similiar hose on the passenger side. I tried to push the wire in but did not get too far.
    One of these hoses drain the Sun ( moon) roof.
    I then took a cap from a silicone tune ( u know the screw on tip that you cut at 45 degrees) That I inserted into the tube under car, then I insert a small funnel into the silicone cap , next with my garden ready and flowing , I force water up through the AC drain hose. Dont do too long, 5 to 7 secs is good. You will see the water come through the other drain hose. It is best to have some onlookers. Note some water might flow up to the moon roof drain and into the car so place some towel on the seat.
    That works for me.
    Thanks all
    and good luck

  • Anonymous May 10, 2009

    Same problem for me............I have a great opinion of my 2003 CTS except for this persistent problem. I have been fighting this for 2 years. This makes me think I should have bought a Lexus!!

  • John R. Hall Jul 29, 2012

    the rear seat a/c stopped up How do you clear it

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I have a similar problem with a 2003 cadillac cts. The water drips from the bottom area of the glove compartment. If you would stick your hand under and feel around, there is a removable panel ( two small bolts and one star screw) there , you will fell the sponge on the other side of the panel is wet. I removed this panel and ran the air conditioner and place a large mirror on the floor and shine a flash light up but did not see any water dripping.
The Driver side has a similar panel, I removed that also but saw nothing, not even the canister. But the out side pipes from the AC show the canister leads in the hood under ther driver side.
Any way I looked under the car and found the drain hose. It is located under the driver seat area. I tried fishing a coat hanger through it and it went a long way up. If you look on the side panel where the parking brake is located you will see this hose going to the top of the hood. You will need to depress the parking brake for a better view. I tried the Ac bot no condensation water came throug.
I late found a similiar hose on the passenger side. I tried to push the wire in but did not get too far.
One of these hoses drain the Sun ( moon) roof.
I then took a cap from a silicone tune ( u know the screw on tip that you cut at 45 degrees) That I inserted into the tube under car, then I insert a small funnel into the silicone cap , next with my garden ready and flowing , I force water up through the AC drain hose. Dont do too long, 5 to 7 secs is good. You will see the water come through the other drain hose. It is best to have some onlookers. Note some water might flow up to the moon roof drain and into the car so place some towel on the seat.
That works for me.
Thanks all
and good luck

Posted on Mar 29, 2009

  • Jason Peterson Aug 08, 2013

    The drain is actually located on the drivers side in the transmission tunnel. It can also be located if you pull the carpet up by the gas peddle

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