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There are two ways. The old R-12 A/C's have a "screw thread" style service fitting for adding refrigerant. These resemble a tire valve. R-134A systems use a "quick connect" type fitting with no external threads. These fittings are on stock R-134A and R-12 systems that have been retrofitted to R-134A. The purpose is to prevent someone from charging R-12 into an R-134A system and vice-versa. Also, retrofitted A/C's should have a label saying "Retrofitted to R-134A," or something to that effect. The label should also say the freon charge weight and type of oil in the system, usually a polyol ester oil (POE or ester) in retrofitted systems and a polyalkylene glycol (PAG) in stock R-134A systems. Look for both the "quick-connect" style fittings and retrofit labels on the vehicle in question.

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โˆ™ 2005-05-28 03:50:11
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Q: Can you tell if a car has been converted to use R-134a freon?
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How much freon goes in a navigator?

If you got to any auto parts store, they will have bottles of r134a that you can buy that have gauges in the handles that will tell you when you have enough in it. If you system wont cool or is out of freon you have a leak and should get it check to have a repair done, an ac system with out freon has no lub either and that will lead to compressor burn out. The freon cools the air and lubs the compressor.

What kind of freon to use in a 1991 suzuki sidekick?

I have a '92 and it is Freon 12. There are a couple of ways to tell. 1. There is a sticker under the hood that will tell the type of freon and the amount. 2. The best way is to look at the freon input connection. Freon 12 is a 1/4" flare fitting and freon 134A is much larger. A freon 12 system can be converted to 134a with a kit that is very available. They make these kits because freon 12 is unavailable and is now illegal to sell.

How do you get a 1986 Volvo to take freon?

Everyone will tell you it's better to take your car to the shop to have AC work done. It can be dangerous and illegal to vent the freon into the atmosphere. But first of all, we need to know if the AC has been converted to R134A? If it's R12 you're going to have to convert it to the readily available R134A. If it is already R134A and by "to take freon" you mean add freon, then you add it to the low pressure side port. It's said that the hose that connects the can to your AC system won't connect to the high pressure side, but do not even attempt to do this. Thus the dangerous part earlier. I have heard it can explode. The low pressure side fitting is usually under a blue cap. And the high side is under the red one. Also do not overfill. This can be dangerous as well. If you have added a can and it's still not getting cold inside do not continue to add any more. Something is probably broke and adding more freon won't help it. But once again it is recommended to take it to the shop.

Does your 1993 Chevy astro use r12 refrigerant?

Very Likely, Run By Any Parts House, Let Them Look To Be Assured. It May Have Been Converted To R134A, They Also Can Tell You By The Fittings. From Factory It Was R12. GOOD LUCK

What type of freon does a Chrysler New Yorker 6 cy 3.3L engine take?

AnswerWhat year? There are two types for cars R12 for cars up to 1993 It no longer made and if anyone has any they can charge you $100 to $150 per pound The other is R134a for cars after 1993 An older car MUST be retrofitted to R134a for $100 to $500 depending on what needs to be replacedfreonthere is only one type of freon. It's freon it will work in any vehicleTotally incorrect! There are several different kinds of "FREON" freon is actually a trade name of Dupont for R22... Not an overall refrigerant. Anyone who has the certification to work on refrigeration equipment of any size will tell you it needs to be replaced with R134a. R12 is a refrigerant that destroys the ozone and has been banned by the EPA. FYI if anyone is caught putting R12 in for you they and you can be stuck with pretty hefty fines as well.

How can you tell if a 1994 Pontiac Grand Am uses R12 or R134a freon?

There should be a sticker under the hood indicating whether it uses R12 or R134A. Unfortunatley a lot dont. The only way to tell is by the high and low side fittings. R12 fittings are bothe the same size. R134A has two different size fittings where one is larger than the other, ussually the high side fitting is larger than the low side.

What type of freon is used on a 1998 Honda accord ex?

Your car should use R134a. The manufacturers switched in the early 90's. The easy way to tell is have a look at the sticker under your hood. Every car I've looked at has a sticker that says some basic emissions data, engine size, and the type of refrigerant used. The other way to tell is to look at the two charge ports. You'll find them on the silver coolant lines, under large plastic plugs that look like tire valve caps. R134a systems will have a quick disconnect fitting (a ridge, not a thread). R12 will have threaded fittings for the hose. If you have a car that uses R12, it should be converted to R134a. The process isn't very hard, and the parts are available at most auto parts stores, if you have a vacuum pump and recovery unit. A R12 to R134a conversion kit comes with fitting converters, a flush kit (you can NOT mix R12 and R134a. Bad things happen to your equipment), and the recharge freon and oil.

What type of refrigerant is used in a 1994 Taurus SHO?

R134a. Open the hood and look on the decal above the radiator. It will tell you R134a.

Is a 1998 Mercury Sable AC an R12 or R134a?

You should be able to find a sticker on the underside of the hood that will tell you. It should be R134a.

How can you tell what kind of freon is in a tank?

What we use is called a freon identifier and what it does is it takes a small amount of the freon that is in the tank and gives its identification and values.........

What if r12 was changed to r134 and adaptors were removed - how can you tell what freon is in it?

With a refrigerant id tester. Go to a service center and have them perform a refrigerant purity test. Many R12 to R134a conversions did not actually have a complete conversion done, as the full conversion was very expensive, and one could get by with replacing some fittings and the compressor oil. Thus, the R12 schrader valves were often retained on these converted systems.

How do you tell if an air conditioner uses freon?

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