View Single Post
Old 08-10-2017, 03:47 PM   #5
71C10Guy
Registered User
 
Join Date: Jul 2017
Location: Dripping Springs
Posts: 39
Re: 71 c10 ac questions

Quote:
Originally Posted by demian5 View Post
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 is offline   Reply With Quote