Well that explains why my temp gauge wouldn't come up to where it should be. I just went to fit a new thermostat and there wasn't one in the housing.

I changed the coolant temperature sensor too while I was at it. Wow that's a bitch of a job to do.

All done now though and gauge is right on 90 degrees and gets there in just a few minutes. And heater is toasty warm too. Hopefully my mpg will improve as well