No cold air from A/C. Pulled out my 134a and gauge set. Neither quick conector (High or Low side) would connect . They don't even begin to fit. The low side connector is too small to fit over nipple, high side connector fits over high side loosely but won't lock. tried high on low and vice versa no love. A/C lines have the fittings welded to them so they haven't been changed. This gauge set works on volvos, chevy, ford, mopar no problem. Anyone run ito this?