Cooling system torques

[JoeZ78]

Good morning everyone, my 2016 Tahoe just got the dreaded temp gauge stuck at 160 and cooling fans staying on. I am able to clear the pending code (P0128) and everything goes back to normal. It will do it again a few days later. I read a lot of posts saying that it is usually a bad ECT sensor that causes this, but also could be the thermostat. Engine temp seems a little on the cold side when driving (185), but outside temp has been around 50. I am going to replace the ECT sensor and thermostat just to be safe. Can someone please tell me the torque specs for the ECT sensor and the three 10mm bolts on the thermostat housing. I don't want to overtighten them and crack the aluminum intake.

 

[Geotrash]

Good morning everyone, my 2016 Tahoe just got the dreaded temp gauge stuck at 160 and cooling fans staying on. I am able to clear the pending code (P0128) and everything goes back to normal. It will do it again a few days later. I read a lot of posts saying that it is usually a bad ECT sensor that causes this, but also could be the thermostat. Engine temp seems a little on the cold side when driving (185), but outside temp has been around 50. I am going to replace the ECT sensor and thermostat just to be safe. Can someone please tell me the torque specs for the ECT sensor and the three 10mm bolts on the thermostat housing. I don't want to overtighten them and crack the aluminum intake.

Start with the sensor only - 99.9% that that's your problem (classic symptoms), 12 ft. lbs. Thermostat housing is 11 ft. lbs.