Using a set of a/c gauges put the blue hose on the low side (suction side) and the red hose on the high side (discharge side) and make sure that there is no freon in the system and if you have freon in the system then you will have to go to an automotive a/c shop and have them reclaim it for you..
Put the yellow hose on your vacuum pump and let it run for about 1 hour and then let it sit for 1 hour so that you can see if it will at least hold the vacuum pulled.
If so then let it run for an additional hour and then start the recharging process remembering to keep the low side readings between 30 to 40psi and the high side between 200 to 250psi depending on the outside temperature…………….Freon is stored in the compressor unit of an air conditioning system.
Adding freon to an air conditioning unit should only be done by a certified technician. It is in fact illegal for anyone to add freon to air conditioning that isn't properly certified, so one would add freon by calling in a certified technician to do it for them.
in the air conditioning unit
where do I add freon to my air conditioning unit on a 1997 chevy truck?
it will break the unit
nowhere
Your 1999 Oldsmobile air conditioning air compressor can be found on the left-hand side of the engine. You can fill the system with Freon through the low pressure port.
Never, unless you have a leak.
where is low side charge port located
You can put Freon into your 1997 Nissan Pathfinder from the low pressure port. Connect the Freon bottle to the port. Release the Freon into the air conditioning system.
The amount of Freon you will need to fill your 2001 Mercury Sable air conditioning system is dependent upon how low the Freon level is. A recharge kit will have a gauge to tell you when the system is full.
When charging your Jaguar X-type air conditioning unit you will need R-135a Freon with oil added in. There are 2 ports on the air conditioning unit, one big and one small. Make sure that the car is running and the air conditioner is on full blast, then hook the Freon refill rig onto the port that it fits to recharge the system.