Adding freon to the sistem

buy can with hose adapter and hook it up according to instructions to the low side port the following link shows how to add freon to different vehicles your vehicle is not their but the explanation and how to are the same for adding freon
How To Add Freon To Auto Yahoo Video Search Results

Your system may just be low on freon. Most auto parts stores sell 134a freon for about $10 a can. If you visit an Autozone store the parts counter personnel might also show you how to add freon to the VW Beetle, it's not hard once you know where the correct port is located. You simply start your car, connect the freon dispensing hose to the AC port (there are two (2) ports, but the hose connection will only fit onto the smaller of the two (2) ports - the low pressure side). Allow the car to run while the can is discharged into the AC system, generally takes 10-15 minutes. Most dispeners have a freon pressure gauge on the hose portion that attaches to the can. Never disconnect a partially empty can unless there is a shutoff valve, and the valve is closed all the way. Better to add the entire can to the AC system.
If you have never added freon to your 2003 VW Beetle, that's the most likely problem. You could also have developed a slow leak in the compressor or AC lines, so I recommend adding freon WITH a sealant in the same can just in case.

The job would cost between $45 and $65 if you take it to a reputible mechanic to perform. That usually includes a full blown pressure test of the AC system. and a whole list of costly recommendations.

Adding freon to a car requires connecting the low-side service valve first, followed by the high side, recovering the existing freon, evacuating the system of air and recharging the system with new freon.
You can use R-134a refrigerant for 1998 Ford Explorer. You can get all parts necessary for Ford Explorer at one place at http://www.carpartswarehouse.com/carparts/Ford/A-C_Condenser.html

You need to check the freon level and if that is good check the compressor. If you have no pressure on the low side, when I say pressure on low side I mean vacuum, then most likely the compressor is bad or you have a leak someplace. You can get a freon fill kit at Walmart, Target, Auto Zone and most any auto parts stores. These kits comes with a gauge and connection hose. Typically if the freon is low the compressor won't activate. Connect the fill hose to the low Side of your AC and turn the AC on to Maximum with the engine running. If its a low freon problem the compressor will start to kick in as the pressure increases. Make sure you don't overfill the system as this will cause a seal or line to blow. Being a 1998 your vehicle should use R134A freon which is what can legally be purchased by a home mechanic. It cost about $12 to $20 a can and usually includes a leak detector additive and seal conditioner.

Not sure of the question you are asking but I think you do use the 134a freon which you can buy with a hose that has a gauge on it at your local auto parts store. You connect it on the low side (On your reciever/dryer) it will only fit there if you buy it that way (the high side is a bigger fitting). You only want to put about 50 - 55 PSI in there as the clutch is engaged it will give you the reading. On some of the S-10's there was a problem with the low pressure switch not working so make sure that you are low on freon as to not over fill. I hope this helped and good luck.

Get an r134a refrigerant add kit from Walmart or your local auto parts store.

You can even get a can of Arctic Freeze by Intermatics that has a hose and a gauge on it.

Connect the hose to the low side port. You can find this port on the 'thicker' piping that comes off of the compressor (versus the thinner piping that comes off the compressor which is the high pressure side).

Pressure should read 25 psi to 45 psi on the low pressure side when the compressor is running and the a/c is on.

Pressure should read 75 psi to 100 psi on a hot day when the car is off.

However, you'll want the a/c to be running when you add freon.

Press the button on the can to install more freon, if needed.

there are two hoses coming out of the firewall side by side .. one is large and one is small ... they both have valve ports but only the large tube (low pressure side) is to be used for adding refrigerant .. if your connector from the R134a can does not fit ..then you probably have the older R12 system .. that has been outlawed now because of ozone layer destruction caused by it ..you cant get that anymore .. you can however convert your system to R134a but it involves washing out the entire system and replacing all rubber parts ..then attaching adapters so the R134a will connect (availible auto parts) .. by law any remaining R12 in your system has to be recovered, not vented to air .. (actually the r12 is worth a fortune right now but it may not be legal to sell ..its about a 25 times increase) ... the modification process requires a "certified" tech to do the work and the results wont be quite as good as the old r12 ... at least it will work if the system is cleaned out enough .. the two refrigerants dont like each other .. that is, the lubes that are used do nasty things when mixed .. if you wanted to you could become "certified" by attending some classes and passing a test on ozone layer depletion ... now they have discovered that r134a is a powerfull green house gas .. so that also will be phased out in the future .. its like 1600 times worse than CO2 ... r12 was a wonderful chemical .. very hard to beat its performance and stability .. .

On that model,it will cycle on and off while you add freon.If it does not ,then the ac system might have a problem.The low side pressure switch is located on,or near the accumulator .Unplug the switch and take the wire end plug and connect the two plug in`s together(cross it out on the wire).This will make the ac compressor engage and you can charge the system,do not leave the wire connected,plug it back up to switch.If the ac compressor does not come on ,then have the system checked out.

You need to add the freon on the low side which is usually indicated by a blue cap. The red cap is the high side port. Never add freon using the high side port. Typically if you are buying a guage set from your local auto parts store, it will only attach to the low side service port because they are diffent types of connections. Another easy way to tell is to turn your AC on and feel the lines that the ports are attached to. The low side should be cold/cool and the high side will be hot.

Is the A/C compressor turning on? If not, that's one reason and a big one as to why it won't take the freon into the system. Have the compressor checked to make sure it is even coming on. You can hear a click when it is turned on/off. No click sound, no compressor working! and therefore-- NO A/C working