85 XF Ghia 17 Posted May 11, 2022 Hi Guys, does anyone out there have a coloured pic or a diagram of the hvac vacuum lines that come out of the LHS of the firewall such as the black, brown and blue lines. Where they go or connect to on the engine please. Share this post Link to post Share on other sites
deankxf 20,266 Posted May 11, 2022 if its' a help the black one gets manifold vacuum the green is heater tap, i am not sure on the blue one. there may be a thread on it already but i'm not able to search for it right now 1 motoSycho reacted to this Share this post Link to post Share on other sites
