I wanted to recharge/refill my A/C refrigerant and wanted to know if there is a difference in the nozzle connector for the low pressure valve between the R-12 and R-134a thus preventing a mix up of the different refrigerants or are the nozzles the same and the only way to recharge/refill is to have a shop do it or use a conversion kit?
What has me wondering is that the A/C compressor on the truck right now is not the OEM part, I could tell cause the sticker on the A/C compressor states is a Reman, this would lead me to believe that it might have been replaced for a A/C compressor that works with R-134a refrigerant.
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'92 Silverado 1500 Ext Cab, 5.7L V8, 2WD
Define irony: a bunch of idiots dancing around on a plane to
a song made famous by a band that died in a plane crash.
- Garland Greene on Conair
R12 and R134 fitting are different. R12 fittings are just threaded nipple(kinda looks like a tire valve). R134 fittings have quick connect fittings with a valve in the center. It is important not to mix the 2 types so if you are not sure, take it in to get checked out
If you have a question, ask it in the forums. I will no longer be answering questions sent to my email.
I went to Walmart and got a recharge can with a gauge, $30 if I remember.
It has very good instructions as to what pressure to look for.
The refill hose will only fit on the correct fitting, mine has two and one is larger than the other.
Mine has worked great since then.