I believe what you are asking is where do you charge an ac system with 134. I have a 90 Buick lesabre limited and the charge port is located on the accumulator. It is a big silver canister that the refrigerant lines go to. You should see a charging port on the right of it if you are looking at it from the front of the car. I dont know what year your car is so hope this helps you.
r 134
R-12 Convert it !! R-134
From factory R-12 Should be converted to R-134
Factory R-12 Should be conveted to R-134
R-134, cars built '93 and prior used R12. However bear in mind that '93 vehicles were a mixed bag of both, some used R12, others R134, and your car could be a '93. One more thing, AC stuff should really be left to the profesionals, not the home mechanic.
Most US vehicles before 1994 were R12, so the car will need to be retrofitted.
Most likely R-134. Just check your fittings. The R-12 fittings won't accept R-134 connection hoses and vice versa. R-12 are screw on schrader type while R-134 are larger.
Juneau, Alaska is the capital city located at 58°N 134°W.
To charge the air conditioning in a 1994 Buick Skylark, you will need to locate the low-pressure port on the AC system. It is typically located near the firewall on the passenger side. Attach the refrigerant hose to the low-pressure port and slowly add refrigerant while the AC is running. Be sure to follow the manufacturer's guidelines for the correct type and amount of refrigerant to use.
5% of 134= 5% * 134= 0.05 * 134= 6.7
81% of 134= 81% * 134= 0.81 * 134= 108.54
15.5% of 134= 15.5% * 134= 0.155 * 134= 20.77