2015 Yukon SLT temp gauge at 0 and radiator fan running constantly

[Dirt71]

It's very intermittent, I am having the same issue with my 2015 Yukon slt. All fans began running (temp gauge at zero, fans ran when vehicle was turned off and continued to run when restarted) I have 166k miles. I replaced the coolent temp sensor and it seemed to have fixed the problem for a couple of weeks. But I've notice that it happens almost every time I adjust the climate control knob. any suggestions?

 

[LordWayback]

It's very intermittent, I am having the same issue with my 2015 Yukon slt. All fans began running (temp gauge at zero, fans ran when vehicle was turned off and continued to run when restarted) I have 166k miles. I replaced the coolent temp sensor and it seemed to have fixed the problem for a couple of weeks. But I've notice that it happens almost every time I adjust the climate control knob. any suggestions?

Temp gauge on dash being 0 can be a bad thermostat in this weather

 

[Fless]

If the temp gauge is at 0 when the engine is warm, then suspect the ECT sensor or its circuit.

When your issue happens, compare the ECT reading on a scanner with an infrared temp gun reading or two on the engine.