Everyone approaches A/C a little differently. My approach is to first find an A/C hose shop and replace every hose in the system with new hoses. Next up, new condenser, condenser fan, evaporator core, new heater core, new vacuum pods and when recharging time comes, I buy a new receiver drier and switch from the place that recharges A/C systems. Also, a new A/C compressor is installed. Finally, if the climate control is acting the least bit weird, it gets replaced.

Expensive? Yes it is, but it is one less thing I have to worry about when going down the road. I hate it when the A/C system fails.