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The system has to be evacuated under vacuum, and recharged with the right ratio of compressor oil and approved refrigerant. This requires pressurised equipment with supply gauges, you would not try it yourself.
That may mean a change of refrigerant from the old ozone depleting types, to a currently permitted type, depending on where you are.
That may in turn mean you need a replacement receiver/drier as well. If it is the original one, I'd have that changed anyway.
It should take the freon . Compressors will actually pull a vacuum if the refrigerant is completely exhausted. You should be able to recharge system if the unit is just low on refrigerant.
If no pressure is in system, I would have the accumulator replaced and have a vacuum pulled on the system before recharging it. (The accumulator has a dessicant/ filter in it and may become clogged if the system is empty) The vacuum is to boil off any moisture in the system from having it open and also to check for leaks. If moisture enters the system because of a leak then it can freeze in the metering device when the system is recharged. I hope this helps.
Your A/C system will have two service ports, there isn't any "recharge" ports. You add refrigerant to the LOW side only. Prior to adding any refrigerant, you need to check the system pressures with a manifold gauge set. If the system has enough charge and there is another issue, adding refrigerant can make for worse problems. Automotive A/C is best left to the right person with the proper equipment to service them. If you follow the lines from the compressor, the LOW side will be the smaller diameter of the two service ports.
run a vacuum pump on it prior to recharging. Chances are you're adding refrigerant to air. But more importantly, if you're adding refrigerant, you got a leak. It's useless to keep adding refrigerant without finding and repairing the leak, and not removing all air out of the system prior to adding refrigerant
R-134 coolant - not called Freon anymore - also pick up a recharge kit with a guage - do not over charge system! Try AutoZone or Advance - expect to pay around $25. Also, make your own leak test fluid from dish detergent and water. Put sdolution arounf all A/C fittings - you should not see any bubbles. If you do, then there's a leak and recharging the system will not last.
you need a a/c machine that recovers and recharges the refrigerent for starters...recover system... take belt off... disconnect any hoses wires etc... remove fasteners.... new pump may or may not come with oil... if no oil add 4 oz. to compressor through hole... if compressor blew up- lines need flushed and drier will need to be replaced... a new drier takes about 6 oz of oil. pag is the type of oil needed....recharge system to spec...
The real answer to your question is yes, the kit may work. Here is why you shouldn't use a recharge kit:
Theoretically, your vehicle's refrigerant (R134a) should last forever. Your AC system is a sealed unit and the refrigerant never gets used up. The only way you can lose refrigerant is by it leaking out of the system.
However, if your refrigerant can leak out then air and contaminates can get in. This is bad. A recharge kit simply injects refrigerant into the system. It doesn't evacuate the system of any air and contaminates.This is critical. Your AC system should be hooked up to an AC machine in order to evacuate out all of the air and contaminates in the system. The machine will then hold a vacuum on the system to verify its integrity.Finally, the machine is able to inject new compressor oil that also contains a dye that will enable the leak to be located.
If you use that recharge kit, you stand the chance of over pressurizing the AC system and causing premature compressor failure. This can be very expensive. Paying a reputable shop to evacuate and recharge your AC system is much less expensive.
If your AC system hasn't operated in over 6 months, it's especially critical that you have the repair to your AC system performed correctly. Your AC system's seals may have dried out and the new compressor oil will be critical in helping to recondition those seals or the seals may need to be replaced.
Good luck and hope this helps. keep me posted if you need help to recharge the system.
Look at the Low Pressure Side port connector to determine if the system
is compatible with R134 refrigerant. If you see quick connect valves,
it is R134 compatible and you can continue with the recharge. If you
see screw on valves, the system takes R12. Mixing the two
may cause serious damage to the system. Let me know if you have any further questions.