Contour Enthusiasts Group Archives Forums General Troubleshooting A/C, defrost, panel etc switch

Well, the only thing on the line that I can see (or feel) from the resevoir on the passenger side to where it disappears behind the dash is the elbow connector on the end of it. Is the check valve built into the connector? It is larger and a different look to it then the other vacuum elbow connectors.

P.S. I was actually blowing/sucking from the intake side not the resevoir side