What is this?
#1
What is this?
Ok so i was looking under my truck for coolant leakage and came across a tiny build up on this thing. I'm not sure what it is or if it could be where the coolant is leaking from, in fact for all i know it could just be from me spilling the coolant as i poured it in. It is located directly below the water pump and in the second picture i circled where there is a little coolant build up. Please enlighten me.
#7