Automotive Air Conditioning Information Forum

On that subject, it looks like I’m going to have to make a 134a TXV work. It’ll feed the evap R12 just fine, the only problem is that it physically doesn’t fit. I don’t have the parts in front of me but if i remember right the 134a TXV had a smaller threaded end on the suction side.
Is there any ...

Besides the last statement, what did I do incorrectly here, and why is it venting with what should be the correct weight of charge?
The pressures are reasonable at idle, but I would re-check pressures at about 1,800-2,000 RPM to determine whether the high-pressure side is actually too high ...

So would my next best move be to check impedance at the clutch and go from there?
If a compressor is needed do I have to stay with an OEM Denso or are their other options
The dealer said that the compressor was failing internally. Based on their statement, the compressor assembly needs to be ...

Sounds good. I wonder whether you can find the missing part—if not at a Chevy dealer, maybe at a local salvage yard.

Based on the data you posted earlier—ambient temperature of 85°F and 1,500 RPM, the pressures of 25/180 PSI still seem a bit low to me. The low side should be ~30 PSI, and the high ...

I have a 2020 Jetta with no functioning Ac.
I had difficulty finding a shop to service the 1234yh refrigerant so I ended up at the dealer.
The quote was 4500 dollars Canadian.
Well i guess I am rolling the windows down.
Not surprised about the difficulty finding a shop that could handle R-1234yf ...

I bought a 74 F100 with a later model engine using a FS10 compressor, TXV, & parallel flow condenser of original size. The previous owner never tried making AC work. The compressor & condenser & evaporator were on the truck & they dont look new, but they were capped off. I removed compressor ...

Please allow me to put your mind at ease.

Everyone is treated with respect on this Forum, and no questions are "dumb." We are all volunteers, and some of us are still working in the MVAC (Mobile Vehicle Air Conditioning) business. If one advisor can't answer a particular question, someone else in ...

In view of the high mileage, and because we don't know the service history of this vehicle, I wouldn't bother with the OT and accumulator unless you're just curious. Rather, I would replace the liquid line and OT assembly, plus everything else A/C-related under the hood, and thoroughly flush the ...

A couple of additional observations and suggestions:

1. Never "jump" anything, especially by forcing the compressor to run.

The main problem with that is oil circulation. If the system is below the pressure threshold for the compressor to engage, by jumping it, you're also forcing the compressor ...

Two potential issues come to mind:
1. Double-check that your Manifold Gauge Set is hooked up properly and that the yellow hose is oriented correctly. Some hoses have check valves in them, and if reversed, they won't flow.
2. You didn't mention the accumulator, which might be saturated with moisture ...