hey all. i have to replace some tubing and one of the tubes basically leads from the inlet manifold and branches to a few locations. one of which is the brake vacuum pump. anyone have any idea how to unplug this from the unit? their is a blueish/green tab (im a bit colorblind 
) on the bottom of the connection. i pushed this in and pulled pretty hard but it would not budge. i didnt want to pull too hard and tempt fate of breaking off the nipple. :facepalm: any idea on what i need to do here? is it simple push the tab in and pull hard?
) on the bottom of the connection. i pushed this in and pulled pretty hard but it would not budge. i didnt want to pull too hard and tempt fate of breaking off the nipple. :facepalm: any idea on what i need to do here? is it simple push the tab in and pull hard? 
