Do you need to convert R-12 refrigerant to R-134a?
If you drive an older vehicle (pre-1994), the air conditioning system contains R-12 refrigerant (Freon). As long as the A/C system has no leaks and it cooling normally, there is no need to convert from R-12 to the new “ozone safe” R-134a refrigerant.
When did cars start using R12 instead of R134a?
Many organizations believe that R134A contributes to global warming. Vehicles manufactured before 1994 used R12 for air conditioning. Vehicles older than 1994 started using R134A instead of R12. So what if you have a car that was made in 1994 or even earlier?
What should the charge level be when converting from R12 to R134a?
Fortunately, we have an R12 to R134a conversion chart and formula to retrofit appropriately. 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.
Which is better for retrofit R12 or R134A?
You can use the R134a retrofit capacity chart for this purpose. Generally, the new amount is 75-85% of the quantity advised by the manufacturer. R134a has a lower tolerance for mischarging, so you will face worse performance even if you overcharge as compared to the R12.
Can a GM R-12 be converted to 134A?
Contrary to popular belief, most cars originally equipped with R-12 can be converted to 134a and still keep you just as cool. Understanding the basic type of a/c systems GM used on their classics will help with you determine the best route for your project. This is a generic term for the earlier valve regulated systems for the early GM vehicles.
How to convert your car’s a / C system from R12 to R134a?
The A/C system in many older vehicles needs to be converted from R12 refrigerant to R134a refrigerant. This video shows you how to convert your vehicle’s A/C system from R12 to R134a using an IDQ Retrofit Kit. 1. Locate the low-side and high-side A/C service ports.
Can You retrofit a car to use R-134a refrigerant?
There is NO reason to retrofit a vehicle to R-134a as long as the R-12 system is cooling properly and contains a normal charge of refrigerant. A/C systems designed to use R-12 will cool best when charged with R-12 refrigerant. Even if the system leaks, repairing the leaks and recharging it with R-12 is usually the best repair alternative.
Can a Mopar classic be converted to R134a?
Whether you need to convert a Ford, GM, or MOPAR classic 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. Typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount.