I never have followed this hose or tube to see where it leads to. It's hard to follow where it goes because at the back of the engine. You can kinda see it in this picture. The mushroom shaped end is between the purge valve hose and the breather tube hose, you can just make it out a little. It's got a mushroomed shape cap that's made into it. I'm not sure if it's a vent but I looked at used engine/transmissions and never see it in any of the pictures. I thought it might be some kinda vent but it doesn't appear to have holes in it. I know the transmission I have came from a 2001 Dodge Ram Van with a 5.9. But I'm not sure about the actual 5.9 engine that it's my Dakota, whether it's been changed or not. Does anyone know if it's a factory hose or what it's for?
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