It does not contain any Freon (R-12). R134A is the proper refrigerant. My advice to you is to let a professional do the work. By reading the question you are not qualified to charge the unit, because you dont know where to put your gauges on the system.
where is a knock sensor located on a 96 Pontiac Bonneville
Under the hood of the 1996 with the F22 4 cylinder engine. It states 22oz of freon.
R134a
R-134a
R134a
R134a
The 1988 Pontiac Bonneville originally used R12 freon, this freon is no longer available due to government regulation. Your A/C system must have it's A/C service ports replaced. Then the system filled with the correct amount of R134a freon.
12r
NO. The 2000 Bonneville used the 4T65E and the '96 used the 4T60E transmission. It may physically fit, but the electrical connector is completely different for the computer hook-up.
R134a
2 pounds of r134a. Not r12.
134a