So i have a small leak in my ac and i dont mind recharging it here and there its only like 6 to 8 months i recharge it. This time it was low so my dad wasnt around as he has proper gauges to hook up with so i just used my quick refill trigger to put some refrigerant in there and while i put basically a full frickin can inside i took it for a drive and seemed all fine till my dad came back which was today so i went to turn my ac on and it started to rumble badly so i shut it off thinking i overcharged it so i recovered some when i got to my dads so now the pressure is at 22 currently instead of 20 and everything seems fine. Did i damage my system by doing this before it sat at 25 so way over and i left it at 21 as it leaks out over time. Its a nice chilly 45 degrees out of the vents on recirc

 

If it will work now, probably not