I bought a can of r134a refrigerant and a hose with a guage a couple of days ago from my local auto parts store. I had decided to do this becasue my aircondition was working but not as strong as it had used to be. I let the car run for 5 min with max ac, then i connected the hose with guage to the low side. The guage reported within the blue area. I deiced to connect the bottle of r134 and when i opened it everything was fine the about after 2 min i diconnected the bottle and it seamt a lot heavier. What does this mean.
Pete