After reading these posts I was ready to find a cracked housing and solve a problem with Miss Kitty. Not so fast. The thermostat housing looked perfect, as it should because it's less than a year old. Would an inopperable auxilary water pump also cause strange water flow/erratic temp readings? The reason I asked about that is because I had zero warm air through the dash or floor.
Thanks in advance for any thoughts.

 

I forgot to mention that I found no loss of coolant and the auxiliary pump was replaced last year when I was trying to sort out my left side warm air issue (unsolved still).