Steering rack isn’t leaking. It’s the line that runs from the drivers side of the rack to the passenger side. Could not tighten hex bolt any further. Can I replace just this line?

Noticed tonight looking at the engine of my Volvo that there is seems to be a missing hose. It looks like it travels from the heat shield over the exhaust manifold to the air filter box. There is also a small hose that looks like it connect to it. I know this sounds vague, but any help would be appr...