2005 Jeep Grand Cherokee coolant disappeared

jeep
grand-cherokee

#1

Bought a gallon of coolant and added 1/2 to reservoir and one week later reservoir is empty. No water in oil and I don’t find any fluid on ground. Any ideas?


#2

Have your cooling system and radiator cap pressure tested.


#3

And maybe have the engine’s compression checked to test for a blown head gasket.