I just changed my air cabin filter in my 04 Acura TSX and noticed water on the filter. I first decided to change the filter because I was hearing a sloshing noise when I turned the vehicle. I know feel pretty confident that the evaporator drain plug is clogged since I removed the passenger side kick panel to find a puddle of water on the plastic.

I am trying to find out where the evaporator line is to try and unplug it. Has anyone done this in the past and if so could you explain to me the method you used to solve it. Also, if anyone has the service manual and wouldn't mind attaching the AC section to this thread , I would greatly appreciate.

Thanks in advance guys

 

Absolutely find out what's causing the clog. Reason, albeit rarely reported here, one person has reported the ECU got 'shorted out & damaged' by water that drained into it. Our ECU is placed in close proximate (passenger side foot well - center side) to where you're talking about.
As for the drain tube, I wish I could be more helpful. I don't know where it is either.

 

bump, good luck to you, any solution?

 

I haven't had to unclog my TSX drain but I had to do it on another vehicle.

The best technique is to locate the drain on the passenger side near the firewall - it is a plastic tube/hose. You need to use a lift or ramps for the car to get good access. Carefully (gently) ream the tube out with a stiff wire. There are 2 reasons to be careful (1) you don't want to break the tube (2) you don't want to damage the evaporator.

The frequent source of the clog is leaves and other debris clogging the drain tube.

 

Hmm, someone had this problem a while ago before I had a tsx and I was doing some research, apparently it's something with the 04's

 

I worked a 2003 accord with the same problem, no start, pulled the wet carpet away to reveal the drain tube, blew a little bit of air through the line and a whole lake poured out! The pcm went for a swim because of this clog. Lots of dead leaves came out too!

 

Service Manual isn't super clear, but it shows the evaporator core drain hose running down from the evaporator core housing (located slightly passenger side of center, directly bolted to the left side of the filter box behind the glove box) for an inch or teo and then jogging right and then back down.

Best guess, look under car on a line directly below the relative position of the filter and slightly more central...will possibly not be level with the bottom of the other compnents, might be slightly recessed. The kink in it makes a flexible reamer of some sort vital.

 

just pull the passenger side carpet and you can see the tube running into the floor from the evaporator

 

make sure you dont let this go. My ex told me on her 2004 tsx that her carpet on the pass side kept getting wet. 2 weeks later, when she went to start the car, the ecu shorted, #2 and 4 cyl filled completely with gas, and wound up with 2 bent connecting rods. Needed new engine.