Where did the original Freon go? If you have a leak somewhere, you need to repair it first, then pressurize the system with nitrogen to test if there are still any leaks for 24hour hold, if all is well, then u need to get a vacuum pump and manifolds to extract nitrogen and air out of the system @~24in, then do a pre-charge filling the system with 134A, after the pre-charge as its own pressure equalize btw the charging tank and the system, at this point you need to start the car and turn on A/C to the MAX, as you charge on the evaporator/cold side of the a/c system, the cold side will freeze, continue charging by turning the can to upright 10-20sec and upside down for a second interval until it starts to sweat and the cabin temp has dropped to its lowest possible degree it can when all doors are closed. For best results this should be done when the OAT is around 72F. So yeah its a freaking process let the pros do it 4 u.
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Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you.  537whp/496lb/tq@8-9PSI 93 octane
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