how to clear ac drain line on 2004 trailblazer

25

Asked by May 18, 2008 at 11:02 AM about the 2004 Chevrolet TrailBlazer LS

Question type: Maintenance & Repair

3 Answers

70

why do you want to clear it? is it blocked? Start with where the AC evaporator housing, usually located below the glovebox, then find a rubber tube going from there through to the floor. Double check it is the right tube underneath the vehicle

2 of 2 people found this helpful.
44,915

Pressurized air is the preferred method to clearing it.

Theres a cap with a drain hole that a short removable line comes out. It all fits over a hard 1/2'plastic tube.. the cap slides off and watch the water run! the clog was in my cap. i did run a tube up in to the pan and flush it with bleach water,, all came out clear.

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