I want to recharge my ac system what adapter should i use

There are two ports in the air conditioning system of Equinox. One is labelled H for high-pressure and the other one is labelled L for low-pressure. You can recharge your AC through the low-pressure port with a do it yourself AC recharge kit.Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. Note: See next section for recommended pressure values

It all depends, has the AC system been recharged?
If it has and it's not blowing cold air it could be that the AC compressor is ceased. If the AC recharge has been done by you, did you make sure that there was no pressure in the system with an ac compressor vacuum? If the AC Compressor had some pressure left in it and it was recharged without first vacuuming the system, that can cause it to lock. Another possible issue is that it has a small leak somewhere.

Most places nowadays that recharge dont deal with older systems so I doubt they did the proper job that you expected them to. They would need to replace the AC unit and the Frion which is a fairly major undertaking.

Purchase 1 more can and allow it enough time to fully get into the system. You can have the car running while this is happening so it warms the can allowing it to charge faster. Let me know.

hi you might need your AC recharging, after a time the gas from the AC tends to leak out ( as all gasses do ) you could try getting this boosted, better not say that if american might get wrong idea, maybe recharged is a better way of saying it..lol, hope this helps

Absolutely not!  Never attempt to recharge from the high side. Recharging from the high side is extremely dangerous and could do harm to both you and the car.  If the low side pressure is only 10psi, you are low on refrigerant.  Most cars require 20psi to operate the compressor and should never fill to more than 40-45psi unless recommended by the manufacturer.  I'd re-check the pressure readings.  It's possible that instead of charging the system, while hooking up the hose, you've let freon escape, accounting for the hissing noise and the low pressure reading.  When recharging the AC system, it's important to have the car running and have the AC on high.  It's possible, you didn't have a good connection to the low side which also would account for the escaping refrigerant.  I hope this answers your question.  I'd try to recharge the system again on the low side, making sure the connection is good both at the low side valve and on the can of refrigerant.  Best of luck.
Greg

try recharging the ac

Your AC is low on refrigerant; The AC compressor needs a minimum amount of regrigerant to run. If and when it does run (while low on refrigerant) the air coming out of the vents will not be cold. The refrigerant you require is R-134A and is available over the counter but if you are the least bit unsure as to how to add refrigerant, taking it to a garage that does AC recharging would be your best play. If you want to try to add refrigerant on your own you will need the following, 1LB can of R-134A, an AC hose adapter to deliver the refrigerant, and preferably an AC pressure guage to ensure you are not overfilling the AC line which will damage the system.

reclarification. I will need to know what type of vehicle it is. Secondly, do you have the equipment to evacuate and then recharge the a/c system?

The system must be pumped down to 20 inches of vacumn for at least 1 hour before recharging the system.

This operation is highly regulated in most states now because of EPA issues.
Bill

If the AC is not blowing cold air anymore, then yes, recharging will help. However, the AC system is a sealed system and should never need recharging. So if it does need recharging, then there is a leak in the system somewhere that has to be fixed first. It can be a little pricy, so be sure to call around for quotes.