Defective temperature gauge or defective temperature sensor?
The temp sending unit or gauge is bad, probably the sending unit.
Low Coolant or faulty gauge
you can buy the gauge at any auto store or even walmart and there are directions with the gauge.
It can't overheat the minute it starts as it hasn't even warmed up yet, better check your gauge.
The temperature gauge is a relative indicator. The gauges on American cars are notorious for reading different on the same make and model even though conditions are the same. Unless you have the repair manual for the vehicle with details on the temperature marks on the gauge tied to degrees on F or C (absolute) you have to rely on the simplified hot or cold indications.
You can't do that. You can remove the center of the thermostat, the part with the spring, but there has to be something restricting the water flow or the water goes through the radiator too fast. It doesn't have time to cool down. The temp is probably right. If the gauge reads hot as soon as you turn the key on, before the engine is even warmed up I would suspect the temp sending unit has failed. Locate the sending unit and unplug it, the gauge should read cold, if so replace the sending unit.
Because you would have died at that temperature.
Unplug the coolant temp sensor and check what the gauge says...If it falls to cold, then the sensor is at fault. If it stays, then the gauge is either faulty or the contact points on the back of the gauges need to be cleaned... Unplug the coolant temp sensor and check what the gauge says...If it falls to cold, then the sensor is at fault. If it stays, then the gauge is either faulty or the contact points on the back of the gauges need to be cleaned...
Would not recommend using a full choke or even a 20 gauge, 12s are much better
It is easier and cheaper to replace the temperature sensor--try that first
Water heated will turn into water vapor. Even when it's not heated, evaporation is a process that occurs at all temperature for water, so water vapor can always form.