R-134a
R134A
R134a
Freon is R12. Your 1997 Chevy uses R134 Refrigerant.
r-134
Was built for R12, can be converted to R134a.
1994 Chevy lumina freon type
R134a
134 freon
R134a
R134a
To add Freon to a 2006 Chevy Silverado, locate the low-pressure service port, which is typically found on the larger diameter A/C line, near the compressor. Remove the cap from the port and connect the A/C recharge kit to it. Make sure the engine is running and the A/C is set to the maximum cool setting while adding the Freon. Always check the vehicle’s specifications for the correct type and amount of refrigerant needed.
R134a, R12 is no longer available if you system has no major leaks, ask around local shops for r12. there's still some out there.