First of all you need to determine if your car is a car equipped with R-134A Freon. If it is a R-12 car you wasted your money in buying the cheap R-134A Kit. Check under the hood and read what is written to make sure. There is a different type of fitting on a car equipped with R-134a refrigerant then a car equipped with R-12 Refrigerant. The R-134a car has a quick connect type fitting where as the R-12 car has screw on fittings. On your R-134A vehicle as well as on your R-12 vehicle you have a high and low side. Your kit will only fit the low side. This is where you put the freon into the system. The cheap kits are just that cheap. I don't like them. One really needs to have a set of R-134A or R-12 gauges I feel to do the job correctly and know what your readings are on both the high and low side of your system. Chances are that if you need Freon you also have a leak in the system. You may add a can or two and find that it will all leak out depending on the leak. Its your call but you need to find out what system you have first of all. I would think that in a 1996 GM vehicle you should have a R-134A system. Let me know if I can be of any more help. I have worked on plenty of these systems in the past as far as recharging them. Even installed a system in a pickup truck years ago without factory air.

fred

Answered by ffas23
1 question asked