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Location of low side AC port to add refrigerant

Location of low side AC port to add 134a

Posted by Anonymous on

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4 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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Jean Leblanc

  • 151 Answers

SOURCE: Air Conditioning Low Pressure Line

The high pressure one is the closest to the A/C compressor. Therefore the one near the firewall would be the low pressure (behind the engine)

Why do u wanna know this since u can't fill it up urself?

Posted on Sep 04, 2008

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Anonymous

  • 1 Answer

SOURCE: need to know the location of the low pressure side

The low pressure side will be on or next to the dryer. It will be the larger hose. Use a pressure guage to make sure.

Posted on Jun 27, 2009

jturcotte

Jeffrey Turcotte

  • 8984 Answers

SOURCE: Can i use R-134a to recharge my AC unit in my 94

yes,

Please see my tip at http://www.fixya.com/cars/r5833579-auto_truck_c_recharge . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Posted on Sep 26, 2010

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1 Answer

How to add refrigerant to a Dodge avenger ac


First, if you have no ac experience, let someone else do it.
If you have the proper gauges, connect the low side gauge to the low side port located on the larger ac line running on the passenger side of engine. Remove cap and attach port adapter. With engine running about 1500 rpm slowly add refrigerant. Note, there is NOT a glass site to see how much is in the system and if you overcharge it , it will cost you.
The ac shop will evacuate, pull out all refrigerant, with a machine and put back in the correct amount.

Oct 01, 2018 | Dodge Cars & Trucks

1 Answer

What kind of ac coolant does it have 134a or r 12 and where is the low pressure port for the ac located


Depends on the year. Cars in the early 90's used R12. Anything later uses R134a. The size of the charge ports will define the R134a port. An adapter is needed to fit on the charging hose. R12 requires no such adapter. Ther charging label under the hood will tell you what refrigerant is needed too. Since you failed to give enough information on what make and model car you have, a general answer for the location of the low pressure port will be given. On the compressor, the larger diameter hose connection is the low side. Connect there, or look for the drier/accumulator (Large diameter silver container near the firewall). Connect there. You will need to access the AC information label under the hood to determine how much freon to add to the system.

Mar 12, 2016 | AC Cars & Trucks

2 Answers

Location of ac low pressure port location 2004 chevorlet avalanch


Look back on the firewall for the two a/c lines. One is large and on is much smaller. The larger line is the low pressure line. Follow that line back to the compressor. The low pressure port will be on that line.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Sep 01, 2012 | 2004 Chevrolet Avalanche

1 Answer

Cannot locate valve to add 134a refrigerant in a 2000 lincoln navigator


What your looking for is called a service port. On a 134a system there are two of them, located in the refrigerant lines. One port will be larger diameter than the other. The large one is the "high" side and the small one is the "low" side. refrigerent is added to the low side with the system running. You really should use a manifold gauge set to see what the pressures are before adding any refrigerant. If the system has too much, it is as bad as not enough.

Apr 26, 2011 | Lincoln Navigator Cars & Trucks

1 Answer

Hot air blows out wen ac is switched on how do i re fill ac unitif that is the problemb


You can buy the connector with a gauge and insructions to the low side at any store that sells auto parts and 134a refrigerant. The low side valve is located right on the front of the compressor. The low side connector will only connect to the low side port as the high side is a different size.

Jul 10, 2010 | 1995 Ford Windstar

1 Answer

I need to put 134A refrigerant in my 2004 Grand


The lowside port is located by the firewall next to the brake booster and the highside is located next to the air filter box towards the bottom.

Jun 07, 2010 | 2004 Pontiac Grand Prix

1 Answer

Locating the High side and Low side AC gas ports


Easy. find the compressor. The larger hose attaching to the compressor is the "suction" side. This is where you install the refrigerant.

The smaller hose, whether rubber or metal as it travels to the passenger compartment, is the high pressure side.

After installing refrigerant and as the compressor is running, the larger hose will feel cool and the pressure side will feel hot.

Jul 29, 2009 | 1998 Dodge Caravan

1 Answer

I need to retrofit and recharge my 1988 Dodge Ram Ac.


First, the old R-12 must be completely evacuated fromt the system. R-12 and R-134A do not mix and won't function together. Once you are sure there's no R-12 left in the system, you need to install an R-134A fill valve on the low side AC line. This is where your refill hose will connect to add R-134A. Once the valve is in place you're ready to fill the system. The compressor requires a minimum of 20psi to engage and should not be filled to more than 45psi.

RECHARGING AC SYSTEM

1.Turn the truck on and turn AC on HIGH
2.Locate the low side AC line (will have a valve and cap similar to the cap on a tire)
3.Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet)
4.Insert the other end of the refill hose to the low side valve
5.Puncture the R-134A can with the screw on the refill hose
6.You should feel the system suction the refrigerant out of the can
7.Check for frost on the AC lines and the air blowing inside the truck
8.If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective
Hopefully this answers your question and you're able to get your AC working again. Best of luck.

Jul 21, 2009 | Dodge Ram 150 Cars & Trucks

1 Answer

Where is the low pressure value located so i can add freon into the compressor


look at the ac compressor and follow the large ac line/hose untill u come to the service port,,has it been retofitted for 134a? if not go to parts store and ask for a retro fit foe the low side,u will need to remove the sharader valve before installing the low side retro fit,,also purchase a charge hose

Jul 05, 2009 | 1991 Mercury Cougar

1 Answer

How do you put in refrigerant for air conditioning


refrigerant is added at the low side charging port, this port is located in the low side AC line from the AC compressor, it is the larger of the two AC lines from the AC compressor, you add until the pressure is stable at around 28-32 PSI with AC on.

Jun 23, 2009 | 1994 Ford Escort

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