The air conditioning system capacity of the 2002 Nissan Frontier is 25 ounces of R134A type refrigerant. The Clean Air Act of 1990 requires the refrigerant to be removed by a certified technician.
u dont
The low pressure switch will do that when the system is low on freon.
A machine that reclaims Freon is needed to remove the old Freon. The system will then need to have a vacuum pulled, and then the new Freon can be added.
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.
Freon R12
R134a
134a
You take it to a professional, the freon you buy in the store is not what your car needs !
r 134a
R134a
R134a
1.6 pounds