The accumulator says 44oz of r134a and the compressor said 8oz of oil.

Thanks Dougflas you been a lot of help. I have one more question. Hopefully someone can help me. It's an early body style 2000 Chevy Tahoe with Dual AC with 5.7L. That year there were two body styles. How much oil and refrigerant does this take? I've been told 8oz or 11oz of oil. And 44oz, 48oz, or ...

Low and high side pressures were equal while AC on so bad compressor.

How much oil do you add to replace compressor? I believe total oil for a new system is 8oz.

2000 chevy tahoe with dual AC.

Thanks for the reply. It's never taken me that long to charge on other vehicles. I also added refrigerant while car was off then started it to finish charging. Any idea what is causing it to take that long to charge?

The orifice tube is covered in black oil but free of debris. Does that indicate a failing compressor? 2000 Chevy Tahoe with dual ac. 200k miles. The Ac wasn't working well. I found it was leaking from valve. Pressure tested and no other leaks found. When filling by weight (44oz) it took forever to f...

once charged by weight, how would you determine its the control valve?

$4 per can = $5.34 per lb
$5 per can = $6.67 per lb

$70 per 30 lb = $2.33 per lb

Plus, I'm not really interested in cans. I can't see how to charge with cans without introducing air into system and also get an exact weight.

I was trying to find some information about the quality of that refrigerant and this forum kinda covered it here: http://autoacforum.com/messageview.cfm?catid=2&threadid=29052 Has anyone had any issues with it? It's the cheapest I found anywhere. I also asked the local AC suppliers and they said...

It upsets me too to see them fail but if it's the original valve, that thing is 16years old. I'd say that's a pretty long service life. I think the reason the valve failed is because the gauges damaged it.