Hello all, first time poster, I have a 2007 equinox with roughly 200K miles. Started having a coolant loss issue, replaced intake, loss still present. Moved on to head gaskets, heads tested out fine and machined reinstalled everything and still have coolant loss. Its been 2 weeks since getting it back and the coolant loss seems to be speeding up. NO visible leaks or puddles. Getting milking in the valve cover but not in the crankcase. Any advice or direction would be much appreciated. Thanks!