Underhood A/C Specification Labels
Most R-134a based systems will be identified through the use of underhood labels, or with R-134a refrigerant clearly printed on labels. (Scheme 22)and (Scheme 23). Labels may be located on underside of hood, compressor, firewall and/or strut supports. The underhood label used on Ford Motor Co. vehicles is Yellow. Before servicing an A/C system, always determine which refrigerant is being used.
