I have traced a water leak to the top of the engine under the intake manafold??? on 1993 Toyota T100

It seems to be in the tunnel between the intake manifold and the engine. I was unaware that there was any water on top of the engine. Is it to preheat the gas before injection?

Asked by for the 1993 Toyota T100
what size motor?
3.0
2 more answers
Coolant tube , behind water outlet on front. O-rings failed. Check knock sensor harness while in there.
intake manifold gasket