Re-Charging AC Systems with R134a, Uncategorized

Converting Classic Ford, GM, and MOPAR’s from R12 to R134a Refrigerant

Most cars with air conditioning manufactured prior to 1995 used R12 Freon refrigerant, which is believed to damage the ozone layer. Due to environmental concerns, R12 is no longer widely commercially available, having been replaced by R134a. An ozone-friendly alternative, R134a is an efficient absorber and carrier of heat, and contrary to popular belief, most cars originally equipped with R12 can be converted to 134a and still keep you just as cool.

If you have been putting off converting from R12 to R134a because of the time and hassle, our Classic Auto Air website offers detailed instructions that explain how to make the switch.  Follow our step-by-step instructions, and if you get into a jam, just give us a call.

classic mustang air conditioning

For converting classic Ford, we have a complete set of instructions on the Classic Auto Air website explaining how to convert your Ford R12 air conditioning system to 134a.

Classic Camaro Air Conditioning

Owners of GM classics including Camaros, Corvettes, Novas, and more will find detailed instructions on how to convert GM R12 air conditioning system to 134a on the CAA website as well.

Classic Mopar Air Conditioning

MOPAR fans, we know what you’re thinking…..how about us?  OK, here you go…click here for recommended steps to convert the MOPAR R12 air conditioning system to 134a.

Whether you need help converting classic ford cars, GM, or MOPAR from R12 to R134a, two helpful tips to keep in mind….

  • Ignore your sight-glass. A properly charged 134a system will likely show bubbles in the sight glass.
  • The typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount.

If you have questions about converting your classic ride’s air conditioning system from R12 to R134a, feel free to contact Classic Auto Air for more information.

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One thought on “Converting Classic Ford, GM, and MOPAR’s from R12 to R134a Refrigerant

  1. michelle says:

    i currently have an r12 system in my 1978 camaro, i dont know what parts i will have to buy for the conversion, i have the long a/c compressor, i was told i would have to change the actuator, compressor, lines, fittings, but i think i might only have to get the different fitting for the actuator, please help?

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