Home › Forums › Stay Dirty Lounge › Maintenance Forums › Disconnected Hose › Disconnected Hose July 26, 2019 at 8:16 pm #894087 college manModerator if i remember right, Its a vent line for the transmission. When you put your engine cover back on. Theere used to be a clip with a hole in it. Remove the broken clip and use a tye rap to hold the vent line up.