losing coolant , but dont know where
so my baby is losing coolant (right now i put water cause i was about to change my coolant when found this problem), the thing is , i dont know where , oil is clean , there isnt any water in oil, or any white smoke (vapor) coming out , any smoke of any color, thermostat is new and no leaks , cant find leaks on radiator, hoses are fine , water pump i found some like little green spots , but that wont be enough to lose so many coolant , im losing like 2 liters every 50 km, thats a lot, engine sounds fine , cant find any vapor coming out from engine or hoses (i tested last night , cause vapor is easier to find , with some lamps) i think my head gasket is blown , but not sure , cause it doesnt stop bubbling on radiator, i though it was just air trapped that need to be bleeded, but it keeps doing it , like a big bubble coming out every 5 seconds, can this be a head gasket failure?, but where the coolant goes?, i cant find a blown head gasket tester not even on autozone ,any tips or suggestions? thanks in advance






