where is the low side service port for a/c system? on 1991 Ford Taurus

I wan't to charge air conditioner with R-134.

by in Graham, TX on March 19, 2010
2 answers
ANSWER by on March 19, 2010
Usually the fitting on the can only fits the low side port
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ANSWER by on July 28, 2011
your system is an older one. Pre 92' should have been filled and fitted with r12.