A/C drain location

Elmo · May 20, 2017

Where is the AC drain located on the 2007 GMC Yukon Denali? Pictures would be great. My passenger compartment carpet is getting soaked after a long ride and it is not raining and I have not been through a car wash. Do I have to take off the passenger side fender liner to access the drain?

I paid a shop to blow out the drain but it is still a problem. I plan to try to clean it myself with a coat hanger if I can get to it. In searching the site most people have a water problem with the windshield or the sun roof. This time it is clearly an AC related problem. Any idea?

PG01 · May 20, 2017

under truck nextvto frame rail and liner

Elmo · May 21, 2017

Thanks. This helped me find the drain. Mine does not have the elbow fitting which may be why it backs up with condensate when I have been highway driving for several hours.

Elmo · May 23, 2017

My car guy who blew it out a month ago looked at it again and decided the drain hose was misaligned and missing the elbow extender. He maintains the condensation was simply going back into the passenger compartment because of this. He fixed both. After things dry out I will crank it up and see if that is so.

2011SSVHOE · May 23, 2017

Yea that elbow extender is important it acts like a venturi , when air passes across it. I had the same issue about 20 or so years ago on a GM car and I fixed it by adding a 90 deg spark plug boot and pointing it rearward.

A/C drain location

Elmo

TYF Newbie

PG01

Elmo

TYF Newbie

Elmo

TYF Newbie

2011SSVHOE

I'm an egual oportunity offender

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