Red is high pressure. Blue is low pressure and yellow is where you add the freon.
David From: [email protected] To: [email protected] Date: Sun, 12 Jun 2011 13:59:21 -0400 Subject: [Chevelle-list] ac hoses I have not used my AC manifold set in a while. Does anyone know. Which way the yellow hose goes? One end is open the other has a valve.The manifold has a dual fitting one open one with a valve.

