guys i have quite the same problem, medyo mahina aircon ng nissan sentra 1997 EX saloon ko, medyo kabibili ko lang. i'm near jollibee manggahan dito sa pasig city. may lam ba kayo na maganda at maayos na shop kung san nag tu tune-up sila at the same time e nag aayos ng aircon, thanks, nga apla magkano inaabot nito? thanks talaga