Same as any other car...attach fill hose fitting to the low pressure side of the system (it won't fit on the high pressure side fitting) and open the fill valve.
well unless you are certified to work on automotive a/c systems you can't even buy freon
in the engine
If it is an automatic transmission, you add transmission fluid with a long funnel through the dipstick opening.
you dont only a certified repair shop can handle R12
Either on the low side of the a/c compressor or straight to the accumulator next to the firewall.........
Answer freon install 1991 Chevythe low side is the big tubing high is small you should look for a siver canaster about the size of a thermus it will have a connection for low pressure to insert freon into system
You don't add Freon as it has R134a not Freon. You add it to the low pressure side which is the larger hose.
Take it to the a auot shop. you can not add freon
Contains no Freon. Freon was banned beginning in 1996.
you can use r134 freon add a/c oil
Answering "Where do you add freon to your air conditioner in your ford ranger?"
You add freon to the low side fitting,top front,on the ac compressor