A/C moisture drain hole

konstan · #1 09-22-2009, 09:57 PM

I know this question has probably been beaten to death and then some... I just have one very specific question.

I have a 95 Ram 1500. 2x4 5.2L v8 if that matters. I would like to know if in *your* Ram the A/C moisture drain hole, which is located right underneath the A/C receiver/dryer, has any hose attached to it, or no.

Troubleshooting the wet passenger floor. The moisture is coming from around the drain hole, on the inside of the cab. I think it is somehow being blown back inside when the truck is moving.

Yes, I did an exhaustive search of the forum; and yes

my 3rd brake light is all sealed up with RTV sealant and is air-tight

))

Thanks guys and gals!

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dhvaughan · #2 09-22-2009, 10:07 PM

mine has the drain port, but no hose on it.

leakage into the cab from ac is common.

it might be seeping in around the pipe if the firewall seal is cracked. you can either rtv around the pipe, and/or attach a drain hose.

if your leak is heavy, the drain pipe may be stopped up, and overflowing the pan. fish a piece of wire or something into the pipe to root out the mold or dirt-dauber or mud or whatever is stopping it up.

konstan · #3 09-22-2009, 10:42 PM

Leak is Very Heavy.

I did take a piece of baling wire and poked around in there. Felt like plastic parts that were all stationary, i.e. no loose garbage...

Aubrey · #4 09-23-2009, 11:33 AM

Leakage from the ac is common? I must have missed all of those posts.
I'd start looking at coolant issues. Heater core leakage is definitely an issue.

zman17 · #5 09-23-2009, 11:40 AM

Quote:

Originally Posted by dhvaughan

it might be seeping in around the pipe if the firewall seal is cracked. you can either rtv around the pipe, and/or attach a drain hose.

This is fairly common.

dhvaughan · #6 09-23-2009, 11:51 PM

another cause of liquid in the passenger floorboard is leaking heater core. it'll usually have a greasy, sweet anti-freeze smell, and will also fog up the windshield.

a test you can do on the ac drain is to attach a hose to it and point it up, where you can pour a couple of cups of water INTO the drain pipe. put down some plastic in the floorboard if you have carpet. if things are working right, the catch pan under the ac should catch what you pour in (to an extent) and then drain it back out the pipe. this might wash out a clog, or if the pan is bad, it might just leak out all over the floor.

konstan · #7 09-24-2009, 12:05 PM

It's not the coolant. Coolant I would've been able to smell and see the color. I got all the floor carpeting lifted up, it's definitely leaking from around that area in the firewall where the A/C drain hole goes through it...