A/C leak

2007 CADILLAC STS
192,000 MILES • 3.6L • 6 CYL • 4WD • AUTOMATIC
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JAZSTS88
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  • 2 POSTS
Water on my front and rear passenger side floor when using A/C.
Aug 28, 2021 at 9:35 PM
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KASEKENNY
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This is most likely the drain for the evaporator that is clogged and causing the condensation to back up in the housing and then leak on the floor.

Here is a guide that will help with this:

https://www.youtube.com/watch?v=q9_MZiS2_NE

I am attaching the info below from the manual as well that will give the detail needed on the drain on your vehicle.

This is in the center console on this vehicle so I would start with this and make sure it is clear.

Also, does the A/C operate properly or is it not blowing as cold as it should?

The evaporator could be freezing but you didn't mention this so I suspect the issue is the drain. However if it is freezing then we need to check the pressures of the system because it could be low causing the evaporator to freeze.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Please see below and let me know if you have questions on this. Thanks
Aug 29, 2021 at 5:42 PM
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JAZSTS88
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Yes it works perfectly just the wet floor problem.
Aug 30, 2021 at 1:58 PM
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KASEKENNY
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Okay. That means we need to access and check that drain.

Let us know if you have other questions on this or how it turns out. Thanks for clarifying that.
Aug 30, 2021 at 3:53 PM