[DML] AC servicing by local garages

["sweetp01569" <paul.sweet@xxxxxxxxxxxx>]

I need to have my R134a recharged in my car each year. I have had it 
done in the past by a couple of different local garages. They check 
for leaks (I never have the leaks, but wondering if my refrigerant 
loss is through leeching through the old hoses each year????). When I 
bring a car in for this, do most garages that provide AC service 
follow a standard routine, or do I need to give specific guidance such 
as "pull a vacuum on the system for such and such a time to evacuate 
any air out of it, then check for this pressure or that pressure, 
etc..."? I don't have equipment to refill myself, and don't quite 
understand the nuances with the AC system. If I make an appointment 
for the recharge, and tell them that approximately 2.0 lbs of R134a 
needs to be filled, will they automatically pull a vacuum, test 
pressures, temperatures, etc? 

Thanks,

Paul
vin 10944


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