a/c interior leak

[177mph]

My 03 'Kon has a problem with the a/c. The condensation leaks inside the interior and gets the passengers footwell soaked. I've checked and cleaned the drain a number of times. Any ideas? Help?

 

[BOSS]

There was a thread a few days ago where a guy was cleaning out the condenser I think, something about a clogged drain line...sorry thats not much help but its something and I'm really really really tired right now

B

 

[177mph]

no solution yet. I can hear water sloshing around in there. There's got to be a fix for this.

 

[Mac]

Are you sure that the leak is not coming from the Door seal. Those tend to leak and get in the interior......check the headliner do you see water spot?

If you have door seal leak, water gets in the side pillar and make their way down to the footwell and probably get in the HVAC that's why you hear the sloshing water. I doubt it's AC problem from what you are describing.
(Use RTV and run a bead around the rubber seal)

 

[matt14]

Are you sure its the condensation from the a/c and not the heater core leaking? If it is hte a/c drain tube, it must not be connected to the evap housing

 

[177mph]

I dont think its a door seal because the carpet is never wet after a rainstorm or after washing the truck. Its only wet after I have been using the a/c for a while. Plus i sometimes see dripping coming from the panel below the glove box - and I can hear the water sloshing around.

When i create suction on the drain on the firewall - water comes pouring out. But i have to create a vacuum in order for it to drain. That tells me its not blocked - its just not releasing the water for some reason.

Its not the heater core because there is no smell from antifreeze at all. Its just plain water. Plus my radiator level has never dropped.

its possible something may have come unattached down there - but i dont know what to look for.

 

[Eagle]

Your drain *is* blocked. You have to create suction to get water out, that indicates there is something blocking it.

 

[Mac]

Yup!!...I agree, definitely a blocked drain.

I don't see any other way besides the seal leak for water getting in.

 

[177mph]

ok - its blocked. Trouble is Ive cleaned out the drain a number of times. Ive pumped compressed air in the drain - ive pushed pipe cleaners in there. Nothing ever comes out. Suggestions?

 

[Eagle]

coat hanger makes a good auger.

when you put the pipe cleaner in, all the water didn't come running out?

 

[afpj]

Another "auger" I found useful is brake cable (like from a bicycle) with the end twisted into a loop. This might break up and pull some of the crud that might be hiding up there. Good luck.

 

[177mph]

Ok - Ive now done it all. Ive put compressed air into the drain - pipe cleaeners, coat hangers - nothing works. If I create suction on the end of the hose - then water starts to come out - but no crud or any blockages seem to come out. Took it to a local mechanic. He couldnt find any blockage. My pass side floor is soaked. Ive got water sloshing around inside the a/c unit. Ive done all I can.

The truck is going to the dealer on Thursday....sigh

 

[177mph]

Update: Truck is back from dealer. They did all they could from the outside. No blockage was found. Truck goes back to dealer next week for complete evaporator dissassembly. 5 hours of labor is early estimate. this sucks...

 

[nathanbgross]

Any Solution?

Hey 177MPH, I have the same problem! Did the dealer ever figure this out and, if so, what was the issue?? Thanks!

 

[04SS99Denali]

i had the same problem. it was just a clogged drain tube