Air refrigerant leaked out? on 2000 Nissan Frontier

The mechanic said that we would have to plug a leak because refrigerant does not wear out it leaks out. I was quoted $800.00 I haven't had them check for a leak yet. I just want to know how a closed system could leak and how much should they charge me.

by in Redlands, CA on September 25, 2009
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1 answer
ANSWER by , September 25, 2009
what exactly did the shop say was leaking?