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?
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1997 Honda Accord Question: Clogged AC evaporator drain
Answer #1Visitor, July 05, 2010, 15:19
Hi - take a look at this post
Answer #2LuvRHondasRkfd July 17, 2010, 12:53Rookie
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.
Answer #3Visitor, August 05, 2010, 19:28
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.