Toyota claims slow leak rear head gasket seal. Coolant . Pressure test ? on 2007 Toyota Sienna

I have been to 2 Toyota service centers. Both indicate upper rear seal slow leak coolant. Neither mentioned pressure testing the system to determine the extent of the problem. Considering the estimated cost of the repair , I can't understand this.

What should I do ?



Asked by for the 2007 Toyota Sienna
most times is very visable were headgasket is leaking due to water stains at head gasket. im sure they are correct