Automotive Air Conditioning Information Forum

According to the A/C specifications that I have, your vehicle calls for the following: 16.8 ounces net weight of R-134a, and 5.1 fluid ounces of PAG-46 oil. The under-hood decal, if it's still there, might differ slightly. If so, the decal always takes precedence.

Compared to older vehicles, as ...

I agree with Cusser .

Some additional thoughts: If your original compressor seized up, it was probably due to a low refrigerant charge, running the system that way, and consequently, oil-starving the compressor. The refrigerant carries the oil, and lack of lubrication equals a seized compressor ...

Kindly start a new topic for your questions.
(Moderator started new topic, above.)

Meanwhile, I have some additional questions:
How did you recharge the system, and with what type of refrigerant?

Add any oil? What kind, and how much?

Did you evacuate the system down to about 29.9 inHg (+/- 500 ...

Yes, the small portable units. There is Vevor (and many similar Chinese brands), the Appion G5Twin and a smaller one by them. I have looked at used RRR machines and some are pretty affordable but I don't know enough to be able to determine if it's operational, etc., and if it would have all the ...

After working on my AC systems and running gauges and all that for several years I am at a point where I'd like to be able to do my own recovery and I wondered if anyone had recommendations for a hobby-plus level machine. I am not in a particular hurry to get an evac done so it seems like one of ...

Hello, I am looking into Vevor's refrigerant recovery machine (single cylinder type) and would like to ask if this machine is effective enough, should I choose the double cylinder type, how is the performance and durability when used with gas such as R134A or R410A, and if anyone has used it ...

I'll try answering your questions, but it depends on whether you're talking 1/4" R-12 hose seals and Schrader valve actuators (core depressors), ACME R-134a seals, or R-1234yf seals.

The hoses having core depressors on one end for 1/4" R-12 fittings attach onto the service port (vehicle) side, not ...

A vacuum of 310 microns is excellent , as are the vent temperatures, especially for a Corvette.

Based on the original factory specs that I have, the system called for 52 ounces net weight of R-12. A charge of 36 ounces of R-134a seems a little "light" to me.

Keep an eye on it. If the evaporator ...

It does sound like the compressor isn't compressing. It could also be that you just don't have enough refrigerant in the system.

That said, kindly post your vehicle's make, model, and year as well. Those will help in diagnosing this further. What I'm essentially trying to get at is whether your ...

I'll hazard an explanation with the following presumptions: Recovery of the entire contents (refrigerant only) of a system into the vacuum of a recovery cylinder, and then attempting to recharge the same system with the same refrigerant contained in the recovery cylinder.

The low side of the ...