Overheating issue, searches suggest BHG but i'm not convinced!!!

[IHateHacks]

Originally Posted by SideWinderGX

There aren't any coolant lines near the intake manifold that I know of

There are 2 coolant lines that run under the intake manifold. One comes from the throttle body and connects to the water bypass pipe. The other comes from the ISC valve and connects to the lower intake manifold's integral nipple.