Quote:
Originally Posted by JSeery
Not sure why anyone would think this is normal? The thermostats open at their designed operating temperature and you may well see a temp drop when they first open, but the temp should stabilize at the designed operating temperature, not a lower temperature. That is the whole idea of a thermostat. 110 is way to low of an operating temperature. For starters I would change out the thermostats for at least 180 degree ones and 185 or 190 even better. Then when installed they should maintain that minimum temperature.
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If the stats were at the heat source as the temp sender is, then they would open as expected, with the temp sender's report following closely. I'm sure you've seen stats installed at the radiator end of the hoses, the worst place they could be, right? Without water circulation, they will remain cold until the heat finally reaches them, but meanwhile the temp sender is going wild.
The OP has aftermarket gauges, and apparently also made a typo when reporting the readings, so we don't really know where his temps actually are.