Engine Size: 4.3
Refrigerant Type: r12
Country of Origin: United States
Hi everyone, I'm new to the forum and I have a question about changing from R12 to R134a. I just bought the truck which is a 1991 Chevy S10 and noticed the compressor kicking off and on when I turn the a/c on. Since I thought the freon was low and that you could not purchase R12 anymore I was wanting to change it over to R134a. Would anyone know what parts I would need to purchase to do this properly. I was told that you can't purchase a kit and just replace just the freon, that it would cause problems down the road. Are there parts that I could get from the junkyard to help save some money and which ones that I would need to purchase new. Thanks for the help.
First, R12 is still available, and should be your first choice for OEM performance.
Second, since the truck is new to you it could have almost anything in the system right now.
Third, it could be fully charged. Cycling could be perfectly normal at low ambient temperatures.
If you plan to do the work yourself, you should start with a Gauge Set, and collect the pressures from the vehicle. Static, high & low side while compressor is engaged - at both idle & 1500 engine rpm. Record the ambient air temperature at the time of the test.
Once you have all of that data, post it here & we can help you through the repair.
"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.
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