Trying to track down a vacuum leak that is causing the vents to default to the defrost position. I have good vacuum inside the engine compartment. I am ready to move onto the next step but need some...
If you look closely at the the black and white lines it looks like there is a ring at the end of the coupling where the lines goes in, if so push that in and the line will come out. When re-inserting just push the lines into the coupling and they will lock.