07 H3 losing coolant?

[07Humvee3]

By any chance did you check your engine oil? if there is a crack in the head or engine block, usually water gets into the oil...

[wpage]

Had that problem initially with my H3 losing coolant. Started adding straight unmixed coolant (not 50/50 mix) and after a few fills it stopped....

[Bro]

Well, it was the head gasket on my 07 H3. They replaced it and I am no longer experiencing a loss of coolant. They said it's growing to be an issue on the 07's so keep a look out.

[pdsq99f4]

We've seen a few 07's with trans coolers leaking it into the transmissions. It's hard to see it in the trans fluid sometimes unless you put it on white paper.

[Bro]

Hello,

after they replaced the head gasket, the actual head itself and a few other items. The culprit was my trans cooler leaking internal to the radiator? Does that make sense? So I got a new cylinder head, radiator, coolant flush and overflow tank out of the deal. They replaced the cylinder head after stating cylinder #4 had excessive leak down.