I have some white smoke/steam on start-up that goes away after 1-2 min it does not have the sweet smell. I have the swish sound in the heater core under the dashboard. I have slight roughness when idling but could be due to a FI seal. 0 driveability issues and no problems with oil pressure or engine temp. Vacuum is good and stable. The problem is the 4runner uses water. about a pint a week or so. No oil in water, no water in the oil. Besides a leak in a pipe or the water pump somewhere what am I looking for to cure the water usage.

I also put on a new radiator cap.