Intake manifold, coolant leak

This is on a 2000 Jimmy with a 4.3L and AT. I have coolant sitting on top of the intake on the right side in the front (if your looking at the engine from the front of the car). The radiator hose is not leaking. It looks like its coming from another hose thats going into the intake. This hose looks like it runs from the intake to the exhaust manifold. The hose doesn't have normal clamps, it kinda looks like the ac hoses. Anyone know what this hose is ?

Post a picture.