Can someone tell me what this "bolt" is (see arrow).
THere is a coolant leak coming form that area (oil pan saturated), I didnt visually spot it yet. But when I took the pic, It seems that it is all dry above that bolt.

Thanks
Nelson

 

That is one of the many tension bolts holding the engine sections together. Your coolant leak it likely coming from above, and running down. The connection between the rear iron and TB could cause this.

 

What would be the easiest way to reach this area (rear iron and TB) would you have a pic?

Many thanks!
Nelson

 

Check the FSM for an exploded view. Links in the 2nd gen FAQ. You can stick your hand back in that area (under the rear side of the UIM), and feel around for coolant. If you have a mirror, you can try that too. The hose runs from the thermowax on the TB down to a connection on the rear iron.