On the 4.0 SOHC I'm trying to figure out what the rubber tube/breather thing is for in this picture (the thing circled in red). For reference, the green line indicates the battery and the yellow line indicates the ABS system. This is on the driver side of the engine bay right above the wheel well.
I'm thinking it's a breather tube for the power steering system, but I can't tell where the line runs from.
Any help is appreciated, thanks.