Quote Originally Posted by Triathlete View Post
AC is in need of charging. Never done it before. Anything I need to know? Tips? How-to?
I already have the 134r kit with the gauge.
I follow the procedure on the can.

IIRC, the thumbnail version would be:

1 Engine running, AC on MAX
2 Connect charging apparatus to top of can, with puncture/close valve retracted
3 Connect filler doo-dad to LOW pressure port
4 Screw puncture apparatus down, then reverse to allow refrigerant into system
5 Fill until indicator arrow is in the green area of the gauge
6 Close valve, remove filler apparatus from AC system
7 Replace protective cap on low pressure port