OK, last night I drove home from work, which isnt even far enough for the car to fully warm up. I got back in it about 20 mins later and drove back to work for a minute, and when I was going back home, it started running hot. When I got home I checked the coolant and the overflow was full and had shot some out on the way home. When I went to work this morning I changed the thermostat and filled and burped it. But now Im starting to hear a ticking noise that gets a little louder as the car warms up. Also, my pcv pipe has a milky water/oil looking sludge in it, but my oil is fine. Im going to take the intake mani off tomorrow and look around a bit but does anyone know offhand if these might be connected or is it just 2 minor things at once? Just so you know, I put a jdm engine in about 4000 miles ago and so far this is the only prob ive had. Oh yea 1 more thing, It seems there is little to no vacuum at idle, not even enough to open the heater valve until about 2000 rpm. Any clues?
I'd check it with a stethoscope just to be certain.