Heat gauge between half and 3/4 line-please help!

[HummerJim]

My H3 never went over half and I did a lot of mountain driving. I would take it back to the dealer and have them check it out. My gut feeling is a bad gauge or sender!

[Ed G.]

If you haven't already, check the radiator and coolant container levels. There's a chance they are low or that some cheap-ass has added only water to the radiator instead of a 50/50 mix with anti-freeze.