Well i believe it is an egr hose. So that leads me to believe its an upper or lower gasket. I wonder if its the upper because of how high its pooling on the engine?

 

The upper intake manifold doesn't contain any coolant, so it would have to be the lower.

 

I have a coolant leak in a 97 Blazer 4.3, a bad one, but it is at the front of the engine. I assume it's the intake manifold gasket and from the fact that if I squeeze the upper radiator hose, coolant blasts out of the gap. It's almost like a piece of gasket was busted out as it is so obviously unsealed. Only ran for a few minutes to get gas and then noticed that the fluid had quickly escaped. There is no fluid evident in the oil and I haven't driven it since the fluid drained. Engine runs fine. No white smoke.

Thoughts?

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