Clogged AC evaporator drain on 1997 Honda Accord

My AC evaporator drain is clogged, and water builds up and spills into the passenger side on long drives. How can I unclog the the drain?

by in Greenville, SC on June 08, 2010
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3 answers
ANSWER by , July 05, 2010
Hi - take a look at this post
ANSWER by , August 05, 2010
It's VERY hard to find but you will need to get under the car on the passenger side and look up by the steering belows for a black plastic box . If you are very lucky, there will be a very small amount of condensation still dripping. Get inside the hole with a coat hanger and jiggle it up and down. Water should then gush out. Good luck, as it is not easy to find.
ANSWER by , July 17, 2010
This worked for a 4-cyl '97 Accord, but I'm 99% sure it's the same on a V-6. Instead of using a wire to dislodge a clog, you can use a shop-vac (pref with exhaust option) and "micro" shop-vac attachments. This is an improved version of the tip I found somewhere else. 1. Find drain tube on underside of car (near front-left wheel). There are two similar rubber tubes very close to one another; one is closer to the ground than the other. You want the other one, the end of it is a few inches above the first one. 2. Hook up shop-vac to tube (it will stretch to fit around the tool). 3. Run in exhaust/blow mode for just a second or two. 4. Switch to vac/suck mode and do the same. You should find water and gunk in the shop-vac hose. 5. Disconnect shop-vac; you'll probably get additonal drainage. 6. Monitor drainage for a few days to confirm you've cleared the whole clog.