Make sure your charging system is functioning properly and your battery is good. Alot of electrical bugaboos result from a poor charge level.
Outside of that, I would be very careful with driving the car under these conditions. You may be right and it may just be a bad sensor, but there could be problems with a coolant passage where the sensor is or something else that has the potential to cause damage.
You may want to try replacing the coolant temperature sensor, but if that doesnt work your looking at a more serious issue.
Outside of that, I would be very careful with driving the car under these conditions. You may be right and it may just be a bad sensor, but there could be problems with a coolant passage where the sensor is or something else that has the potential to cause damage.
You may want to try replacing the coolant temperature sensor, but if that doesnt work your looking at a more serious issue.