Question about 1992 Audi 100

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I have anudi A6 thats needs freeon wnere do i find low pressure

Cant find the low pressure port

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U dumb ****** just add more air to your tire

Posted on Feb 05, 2010

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The low pressure port is directly on the air compressor

Posted on Sep 18, 2009


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1 Answer

Freeon overcharged on a scion xb 2014

Bleed some off, it is not Freon, that hasn't been used in decades. When the low side pressure (at test port in line) reads 28-30 PSI the charge is good to go.

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Where is the A/C clutch relay on 09 Dodge Avenger

befor you go for clutch relay check that you have enough freeon in system, you can also over ride pressure with a paper clip if it starts your low on freeon,

Sep 17, 2014 | 2009 Dodge Avenger

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R134 a is the proper refrigerant for your vehicle. It will be filled through the low pressure port on the a/c system. The low pressure port is always the smaller of the two fittings that is on the larger of the two lines. You should be able to find a sticker for the a/c system that tells you how much the system holds. Do not go over this amount.

I’m happy to assist further over the phone at

Apr 10, 2013 | 2000 Pontiac Montana

1 Answer

I have an ,05 Audi A6. The A/C stop blowing out air when on. When it does work, it will blow air as if all was fine then stop. When I push the ECON button (while driving) cold air will come out though only...

DONT QUOTE ME but it sounds like the Freon gas is low. the compressor comes on & shuts down & cant build the pressure back up again. There are also high & low pressure switches the can do this. U need to get it checked out further. Good luck

Aug 05, 2017 | 2005 Audi A6

1 Answer

Where do you put the freeon in the car on a 2003 lincoln LS V8 engine? i cant find the high pressure or low pressure line!!!!!!!!! help please.

The high port is in plain site next to the radiator on left side
The low port is on the compressor,have to remove some
rubber parts to get over sub frame.

No point in adding
If you have to add you have a leak.

How would you know how much is in the system &
how much to add. Don't do it

Have it properly done at a repair shop

May 23, 2011 | 2003 Lincoln LS

1 Answer

I am looking for the low port for the air condition unit to do a recharge of the freeon

its on the larger ac line thats the low pressure side between the compressor and the firewall hope this helps

Jul 26, 2010 | 1997 Ford Expedition

1 Answer

Audi A4 Ac charge valve.

On that year a4 and a6 there is no low side charging port. (sucks)
The way you charge those systems is by evacuating all of the refrigerant, then with the vehicle off, add the correct amount of refrigerant to the high side port (turning the compressor over by hand occasionally)

Sep 11, 2009 | 1996 Audi A4

2 Answers

Jwezzy 09 : 2002 A6 3.0 Quatrro oil pressure warning light

You're low on oil - the Audi dipstick isn't the most accurate thing out there. Add a quart and see what happens.

Apr 27, 2009 | 2006 Audi A6

1 Answer

I dont know where to add freeon to my 1999 kia sportage 4x4

Find the A/C compressor. Look a both lines going to it. One line should be bigger than the other. The bigger line is the Low Side (suction port) follow that line it goes to the firewall to the evaporator that is in your dash. The low side pressure port is somewhere in that line between the evaporator and the compressor. That port is where you check low side pressure and add freon. Don't worry if you buy a charging kit from a part store you can't hook it up wrong, the low side port and the high side port are different sizes and the hose won't fit. With the A/C running on high, low side pressure should be about 35psi.

Mar 01, 2009 | 2000 Kia Sportage

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