2006 E53 N62 4.4 Losing Coolant
 

Is it possible to lose coolant into the valley pan under the intake with out it coming out of the timing cover weep hole? I am losing a ton of coolant, had some steam at the back passenger side of the engine. Coolant tank is not cracked. Also, is there a weep hole on the water pump itself? Typically they are directly under the seal and shaft that goes through the pump. Mine doesn't have one in that location, but there is a hole to the left of the shaft.

Jason
Helena, MT
2006 E53 X5 N62 4.4

The hole to the left of water pump on the face of the engine. This I am pretty sure is the valley weep hole. I do not know if there is one at the back also. There is although a crossover pan that can leak at the back of the engine.

It could leak from various locations at the front and make its way back via the belly pan.

I'm going to have to put it back together and pressure test it. Do the places like Auto Zone that rent tools have the correct adapter for our expansion tank cap for the pressure tester?