thanks for the responses guys!! i pulled timing covers off and the water pump was leaking and i have a sizeable coolant deposit just below the cam seal (i attached a few pics) any chance that the water pump leaked coolant onto the timing belt kicking coolant up and dumping on the intake manifold? or am i reaching?(im not real stoked about doing the intake manifold gasket)

im going to begin removing the plenum,i was going to do the valve cover gaskets any way so ill get a better look at things . if i do end up having to change out the intake manifold gasket is there anything other than the knock sensor wiring harness a guy should replace? like fuel injectors ect

Attached Images