I installed a new 170 deg thermostat, I bled it until no bubbles were present and replaced the loss anti freeze with a bottle of wetter water. I installed the SCT tune with the 170 on it. My truck temp is all over the place. 160deg while driving normal. When I went to the car wash to rinse the spilled antifreeze from the engine, while it was sitting there idleing for about 3 min the engine temp was at 210 deg. I sprayed the engine and radiator, the temp stopes to 170. If I drive aggressive, the engine temp operates at 190 200. Did I get a bad thermostat?