Alright everyone! As you may know I have a 2011 LML with 69X,XXX miles on it. Few weeks back i had to replace the TCM. When it crapped out the truck went into limp mode while driving and there was a harsh what seemed like downshift! Ever since that happened i have had a small coolant leak. Now it has turned into a sizable amount that leaks just over night. I have search the engine bay meticulously and have not seen any hose or anything with signs of a leak. So i am looking underneath the truck and notice the area right above the oil filter is soaked with coolant! I am unable to pin-point the exact location. So if anyone could kindly inform me as to what the possibilities in that area could be? Water pump is dry as well with no leaking! Thanks in advance everyone!