71 c10 ac questions

[71C10Guy]

One other question, where is the expansion valve / orifice tube located on the stock ac setup for a 4 seasons AC? Thanks!

And I will try to get those pictures up, I linked them to imigur, so maybe that's not right?

[demian5]

Originally Posted by 71C10Guy

One other question, where is the expansion valve / orifice tube located on the stock ac setup for a 4 seasons AC? Thanks!

And I will try to get those pictures up, I linked them to imigur, so maybe that's not right?

Just download the manual like I did and it answers all of your questions.

http://67-72chevytrucks.com/vboard/s....php?p=5781194

http://www.mediafire.com/download/?40ne0nab4bgyqyf

[71C10Guy]

Originally Posted by demian5

Just download the manual like I did and it answers all of your questions.

http://67-72chevytrucks.com/vboard/s....php?p=5781194

http://www.mediafire.com/download/?40ne0nab4bgyqyf

Thanks you so much, this is an amazing amount of information and I'm go8jg to bookmark this page until I die haha. Yes, it did help me, the big cylinder is the pressure control valve and the other is the expansion valve / orifice.

One other thing though, and keep in mind I did this with the old expansion valve and the same pressure regulator valve, I blew air through the evaporator core, and it seemed to be blocked. I'm not sure if the expansion valve or the pressure regulator might be blocked or have a valve that is blocking the air, or if my evap is just junked. Thanks!

[71C10Guy]

Alright guys, well after replacing everything (almost) and running both vacuum and pressure tests, I have concluded that my system still sucks. First off was a leaky valve, which I replaced, and not the condenser core has a giant hole in the side, so I'm going to have to get a new one. It would be a lot better if the one I got from Vintage Air actually fit tho haha.