First see if there is pressure with the compressor off. So, yes a stacic reading would be good.

If there is a freon leak, keep in mind that oil will be leaking out as well, unless it is 134a freon loss throught the old R-12 compatible hoses. The old hoses are not the barrier type and over time the 134a seeps out, while the oil does not.

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 TD Turbo, chipped. Still needs EGR Delete, 228K

90 Dodge D250 5.9 Cummins/5 speed. 400K