It's oil colored & has an odd stink to it. Someone suggeted that that line was for the rear A/C & that it might be oil from the compressor. It looks like the line might have a fitting right at the grommet.
I have a 2004 Yukon XL Denali & took out the mats to vaccuum noiticed that the carpet was wet & stained. I pulled the carpet back & noticed that the pad was soaked in what appeared to be oil. There is a 1/4" bluck tube that goes through a grommet that the floor. The grommet had a bunch of oil in...
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