thanx Daytrepper, I am aware of the water pump issue where the shaft seal goes and leaks coolant into the block and out of the weep hole. if this is the same issue you are speaking of, my friend just had it happen the coolant wasnt even mixed in his oil yet so he may be in luck, if i need to get a new water pump so be it, but he has a gasket kit with head,intake,exhaust,thermostat gaskets along with many seals and such. Can i tell if he water pump needs to be replaced simply by checking the weep hole or should i just take the pump out and check? oh one other thing, reason we think it is the head is it has never overheated,nor has it had a visible coolant leak. has about 123k on it
Still sounds like the water pump. (2.7 is a different animal than your used to lol)....Check the weep hole for coolant, it is down next to the thermostat housing.
I'd disassemble that area first (you'll have to anyways for the heads) and have a look at the water pump.
Just letting you know b/c I have ran across several people that have swapped head gaskets and spent a ton of money, only to go thru the same issue again and find out the water pump was it the whole time....check my thread "info for 2.7 owners" at the top of this forum for more info on the subject. Sometimes the symptoms can be very similar to that of a headgasket, unexplained coolant loss, etc...usually, the w/p either leaks into the oil, or only when the car is running, and your flying down the road, you never see it...esp if it goes into the oil instead of out the weep hole. If left alone most of the time it will end up going thru the weep hole, but sometimes that gets plugged with sludge.
Even if you do find out it is the headgasket for sure (can be verified with a block test), change the water pump and timing chain/tensioners anyway. It will save you future headache, and you will be right there where it is easily done.