pjensen641
Member
- :
- 2013 CX-5 AWD Touring Zeal Red
I have the entire lower grill and half of the upper grill blocked with Black Coroplast. I did some datalogging today. 0F ambient temp. Intake temps remained within a few degrees of ambient. The coolant temp never went over 175 degrees. After 20 miles, I pulled in to my garage and popped the hood. The upper radiator hose was only warm. I could grab it and hold on to it indefinitely, so not hot. I also felt the intake manifold and area around the throttle body. Still very cold (as expected by intake temps).
So my conclusion here is that I don't have an issue with my thermostat. The radiator hose would have been hot if the T-stat was letting water through. Basically, the 2 liter engine is just that efficient. If I am running the heater fan on high, it drops the normal operating temp from 175 to 165, which is below the t-stat temp (177 to 182 according to service manual). Essentially the heater is able to take most of the cooling load.
I believe that blocking the grill has helped warm up a little. My blue light now goes off within about 2-3 miles of town driving.
So my conclusion here is that I don't have an issue with my thermostat. The radiator hose would have been hot if the T-stat was letting water through. Basically, the 2 liter engine is just that efficient. If I am running the heater fan on high, it drops the normal operating temp from 175 to 165, which is below the t-stat temp (177 to 182 according to service manual). Essentially the heater is able to take most of the cooling load.
I believe that blocking the grill has helped warm up a little. My blue light now goes off within about 2-3 miles of town driving.