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AC hoses leaking

AC hose joints much condensation why?

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The condensation will be mostly forming on the suction line to the compressor . It is the moisture in the air forming water droplets when the air hits the cooler pipe. The refrigerant boils off inside the line because of the low pressure cause by the sucking action of the compressor and this boiling off reduces the temperature of the line and so the condensation forms . It will be the larger of the 2 pipes and if this condensation is causing concern then there is a form tube that you can get from the rubbers shops that you can wrap around the line and this insulates the line and so the condensation will not form. When the system is working properly you will notice that the smaller line will be quite hot as the compressor compresses the refrigerant back into a liquid so that at the TX valve in the evaporator(inside the car) releases the liquid into the vacuum created by the compressor sucking on that line. The heat in the car helps boil off the liquid to gas and in doing so removes the heat from inside the car . As it is doing this there is condensation forming on the evaporator fins that drains off out a tube to outside under the car ,hence the pool of water on the road as you drive off.

Posted on Apr 21, 2014


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Posted on Jan 02, 2017

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SOURCE: 1994 Saturn SL Air Conditioning Condensate

OK, I found it. It is on the passenger side, on the fire-wall towards the engine. You may be able to see it from the top, but you really need to be under the car. I found it helpful to turn the wheel hard to the left, then crawl behind the right (passenger) front wheel. I am a big guy and couldn't fit under the car from the front. I don't have floor or bottle jack, nor jack-stands, and DEFINITLY DON'T TRUST THE TIRE-CHANGING JACK. So I just squeezed under the car without jacking it up, and found it.

It is a short tube that pokes out, about a 1/4" in diameter. It only sticks out about a 1/2".

I have a CO2-powered blow-gun that has a rubber collar (it is used to clear out lines in refrigeration), and it just blew out the clog. You may be able to put a short piece of flexible tubing over that nipple and just blow it out (don't ****, you may get all kinds of gunk, lol).

Or you may be able to "gently" push a flexible wire (#12 or so solid copper wire, like Romex) to open up the clog.

Once I got the clog open, quite a bit of water came out. It has been working fine since then.

BTW, I had pulled up the carpet to see where the water was coming from and going. There was some water on the passenger front floorboard, but most of it was flowing to the passenger back floorboard along the hump. Since it's a front-wheel drive, the hump is actually for the exhaust pipe. I guess that's obvious for the "car guys" but it wasn't for me until I got under the car.

Good Luck

Posted on Jan 27, 2009

  • 1779 Answers

SOURCE: Gas line is leaking.

You want to be very careful not to make any sparks while working on this. The obvious is smoking, banging metal tools around, etc. keep cell phones AWAY from the area. Pick up some rubber fuel line from the parts store. Be prepared for some gas leakage, have a plastic pan under the leak. Disconnect the line at the tank, have a piece of new hose ready to push on over the line to as close to the tank as you can, have the end away from the tank plugged up temporarily with a pencil or something that fits snug in it, then remove the rubber hose on the filter, and connect new line from tank to filter, check for leaks, hopefully it is the rubber line you replaced, or the end of the metal line, so the new hose will hopefully cover the corroded leaking area. Clamp and Dry off area and see if you can spot any leaks.

Posted on Apr 15, 2009

  • 14036 Answers

SOURCE: subaru impreza 1993 power steering leak


Posted on Sep 04, 2009

SOURCE: condensate leaking on passenger side from ac

The drain tube from the evaporator housing is most likely plugged up. With the vehicle in the air locate the drain tube on the passenger side of the firewall and using coat hanging or something similar carefully snake it through it Be careful as a lot of water may pour out and don't go crazy poking with the coat hanging as the evaporator core is at the other end of the tube.

Posted on Jun 12, 2010

  • 6927 Answers

SOURCE: Condensate accumulates on the passenger side floor

The drain for the evaporator is stopped up,use compressed air,like a air tank and a blow gun.The drain is directly below where the ac lines go into the firewall.If this was at all helpful,please rate,thank you.

Posted on Jul 18, 2010

Testimonial: "There was also a TSB written on this so I did take it to the dealer for the work ($100) to be done. It drains like any other car now to grade. "

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Sometimes it is easier to remove a larger part like the Condenser with the hoses attached by separating the ends of the hoses from their joints in places that are accessible. Then replace the components from the larger part, return the Condenser to its mounts, and reattach the lines at their joints which are accessible.

You will need extra O-rings in some cases. Be sure to use green Silicon O-rings and have A/C tools on hand.

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Below the A/C evaporator core is a "pan" that catches the condensation and drains it through a rubber hose under the passenger side of the car. I guess that is where your prob is. Maybe hose came loose or is plugged up w debris. Hope this helps

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