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  2. Feb 12, 2023 · By Magnus Sellén. Updated: February 12, 2023. If you drive a car that was manufactured before 1994, it’s possible that the air conditioning system is still using R12. This refrigerant was deemed to be dangerous to the environment, and it must be replaced with R134a instead.

  3. Feb 1, 2021 · Refrigerant oil. R-134a Refrigerant. Thermometer. Wrenches. Safety glasses. Gloves. Steps To Convert R-12 to R-134a. 1. Take the vehicle to a repair shop licensed for A/C work that can evacuate the system of R-12 and recover it properly. 2. Using an A/C flush kit, flush the evaporator and condenser to remove any remaining mineral oil in the system.

  4. Nov 22, 2022 · To convert your car’s AC R12 system to R134a, only a few changes are needed, such as making the pressure ports, receiver drier, and pressure switches compatible with R-134a. To draw the refrigerant from the can, connect the blue hose to the low side port and open the system.

    • Can you convert R12 to R134a?1
    • Can you convert R12 to R134a?2
    • Can you convert R12 to R134a?3
    • Can you convert R12 to R134a?4
    • Can you convert R12 to R134a?5
  5. Jun 7, 2022 · Answer: Not true. Plus, an R134 converted system would never have the same amount of refrigerant as the original R12 system. A system converted to R134a can only be charged to roughly 80% capacity of the original R12 system. Therefore, the R12 system will blow colder than an R134a converted system of the same car.

  6. R12 to R134a Charge Conversion Formula (pounds only) A charge level between 75% and 85% is recommended when converting from R12 to R134a refrigerant. If no conversion information is provided, there is an easy formula to calculate the difference in charge level.

  7. Follow this formula to know the required charge level when you want to convert R12 to R134a. Multiply the R12 charge listing by 0.9 if its unit of measurement is pounds. Subtract what you get by 0.25lbs to arrive at the required R134a charge. This is how the calculation will be assuming that the R12 charge listing is 2.5lbs:

  8. Jan 23, 2023 · To convert your car’s AC R12 System to R134a, you must first evacuate the R12 refrigerant with a vacuum pump and then use an R134a adapter to inject the new refrigerant. Turn on the air conditioner and check for any leaks after charging the system. If there are no gas leaks, you’re done.

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