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AR15.COM
6/25/2005 11:48:39 AM EDT
What would cause the A/C to leak inside the car? I have puddles of water daily on the passsenger side floorboard. Any help would be appreciated.
6/25/2005 11:52:50 AM EDT
[#1]
you sure its not coming for your heater core, see if antifreeze is mixed with the water
6/25/2005 12:11:40 PM EDT
[#2]
The water is from the evaporator pulling the humidity from the air.  It should leak to the ground under the car not in the car.  The drain may be plugged or something may be cracked where the evaporator is located.
6/25/2005 12:14:47 PM EDT
[#3]
There is an a/c drain hose from the evaporator case to the outside of the car under the floorboard or on the firewall under the hood.

Those can become clogged.  You need to take something long enough to make it up the hose and work the clog/crud out.  Don't go further than the top of the hose/bottom of the case - you don't want to puncture the evaporator.

Watch for the water to flow all over you, so be ready
6/25/2005 12:16:44 PM EDT
[#4]
If it is water (clear) then it could be condensation from your AC system. If it is green antifreeze then your heater core is leaking. Normally your windows will fog up some if you heater core is leaking.

How much water are we talking?
6/25/2005 12:33:13 PM EDT
[#5]

Quoted:
If it is water (clear) then it could be condensation from your AC system. If it is green antifreeze then your heater core is leaking. Normally your windows will fog up some if you heater core is leaking.

How much water are we talking?



true it would fog up, if it's not that check the hose from the evaporator and see where it runs
6/25/2005 12:37:04 PM EDT
[#6]
Sounds like the dual-capiculator valve is stuck, possibly a break in the recirculatory coagulator line also.
6/25/2005 12:37:36 PM EDT
[#7]

Quoted:
There is an a/c drain hose from the evaporator case to the outside of the car under the floorboard or on the firewall under the hood.

Those can become clogged.  You need to take something long enough to make it up the hose and work the clog/crud out.  Don't go further than the top of the hose/bottom of the case - you don't want to puncture the evaporator.

Watch for the water to flow all over you, so be ready



Exactly... 99% of the time the A/C drain tube is clogged from debris, some can be hard to locate though, but they all come out of the firewall. Look for a very short rubber tube that just sticks out of the firewall and points down.

However, in some cars, mostly imports like Nissan, the drain tube gets disconnected on the inside of the evaporator tray and once the shallow tray gets full of water it leaks inside the car.

This is not a very difficult fix either, but you will have to drop the lower panel under the dash and the lower evaporator tray in order to reconnect the tube. Not hard to do.
6/25/2005 2:55:41 PM EDT
[#8]

Quoted:
you sure its not coming for your heater core, see if antifreeze is mixed with the water



Yeah, check your radiator and tell us if it is low
6/25/2005 3:29:04 PM EDT
[#9]
Like others have said , it sounds like a plugged drain tube .
Which is an easy fix on most vehicles , except for Jeep
Grand Cherokees . For some unknown reason the engineers
decided that the best place for the drain on them  is inside
the left unibody frame rail
6/25/2005 3:48:17 PM EDT
[#10]
Yupper...............clogged drain tube.Usually pine needles and leaves and stuff,but I found a 7/16 deep Mac socket in my old Dodge years ago so ya never know
6/25/2005 3:49:03 PM EDT
[#11]

Quoted:
Sounds like the dual-capiculator valve is stuck, possibly a break in the recirculatory coagulator line also.




you sure it's not the flux capacitor
6/25/2005 3:54:57 PM EDT
[#12]
a drain hose plugged or a split in a drain hose
6/25/2005 4:13:57 PM EDT
[#13]

Quoted:

Quoted:
If it is water (clear) then it could be condensation from your AC system. If it is green antifreeze then your heater core is leaking. Normally your windows will fog up some if you heater core is leaking.

How much water are we talking?



true it would fog up, if it's not that check the hose from the evaporator and see where it runs



My guess would be condensation.  My Neon used to gush from the lower A/C vents back in Ohio, but it never happens out here because of the lack of humidity.
6/25/2005 5:59:54 PM EDT
[#14]
Thanks for the help guys, I'm going to check that as soon as I get finished working.