In my '73 Riviera GS, the previous owner had the A/C system entirely replaced with a retro-fitter 134a system.
When I had last used it, it blowed ice-cold air (on max-cool)>
Now it just blows ambient-temp air.
I tried charging it to the proper psi (45psi max). When I did, flowing the recharge kit's instructions, I filled it up to 45 psi.
After that I could hear the compressor clutch engage and disengage repeatably--with the psi switching between 25 to 45 psi.
Should the compressor be doing this??
I re-charged another '76 Riv--- with what I believe is the original A/C system, the compressor never engaged/disengaged continuously like the '73's. After charging, it blowed cold.
And though I hate to bring up this car (because many people, including me, are not fond of it), I charged up a Lexus LS400 with the same 134a refrigerant, and it blows cold- w/o the compressor continuously cycling off/on like 1x every second.
When I had last used it, it blowed ice-cold air (on max-cool)>
Now it just blows ambient-temp air.
I tried charging it to the proper psi (45psi max). When I did, flowing the recharge kit's instructions, I filled it up to 45 psi.
After that I could hear the compressor clutch engage and disengage repeatably--with the psi switching between 25 to 45 psi.
Should the compressor be doing this??
I re-charged another '76 Riv--- with what I believe is the original A/C system, the compressor never engaged/disengaged continuously like the '73's. After charging, it blowed cold.
And though I hate to bring up this car (because many people, including me, are not fond of it), I charged up a Lexus LS400 with the same 134a refrigerant, and it blows cold- w/o the compressor continuously cycling off/on like 1x every second.