My air conditioner is doing the same thing it was doing at the end of last summer, filing the passenger side floor board up with water. I paid the dealer $40 to flush the drain out last year, and it didn't help a thing. It was late in the summer then and I just went without it. Now, it has been over 100 deg F three or four days so far and I have been running it a lot. The tube through the firewall still drips on the pavement, but the carpet is soaked.

Has anyone had this problem or can anyone tell me what to check or how to maybe fix this issue? I'm good with tools, I just need to know where to start.

PLEASE HELP!

Thanks! JWB

 

Yep, been there, done that...
I saw that the A/C condensate drain tube was a short horizontal tube barely poking thru the firewall with some kind of cheap seal around it, sandwiched between the Evap housing and the firewall.
What I discovered was that some of the water doesn't all drip off the end of that stubby tube.
Some of it dribbles back UNDERNEATH the outside of the drain tube, back to that "seal"...

SO, I rummaged around in my shop and came up with a length of vinyl tubing. I whacked off a 4 to 5 inch chunk of it and shoved it over the end of the drain tube. I turned it so the curve of the tubing was downward, thus making sure the water dripped off of the END of the tube. Now the water would have to travel uphill to get to that firewall seal.

No more funky, wet carpet pad...


Keith

 

either that or the tube is just clogged....happens quite a bit actually

 

That was my first line of attack.. I verified there was no blockage by rodding and even blowing back with a little compressed air, but still the leak persisted. The vinyl tubing trick worked.

K.

 

Ditto on the drain tube not being long enough. Had the same thing happen. Couldn't believe it at first. A few feet of heater hose, a hose clamp, and a few tie wraps will fix you up. I clamped it to that nipple, and tie wraped the end of the hose to the frame. Carpet has yet to be wet since then.

 

Extending the drain worked for me. I think the wind blows the water back into the horizontal drain.