seeing that you are fresh on this topic, I need to replace my thermostat very soon. My 04 3.0 is not producing any heat and the temp gauge reaches 1/4 at best. Couple of questions regarding this...

1) Do you think I should change my water pump while I am in there? I have 71k on the X
2) Should I completely drain the coolant from the rad and the engine block?
3) Any other hints while I try to change the thermostat? I have the gasket and thermostat already.

Thanks