any one run into this before?

[jasjamz]

Pin hole coolant leak in the intake port. Very slow loss of coolant and not enough to make any tailpipe smoke and hard to see on a coolant pressure test depending on the size of the leak. Remove ALL the plugs and leave a pressure tester on it for a few hours. Kill the fuel and spark have someone spin the motor. If you get sprayed... you found your problem. Speaking from experience.