Low coolant level which causes an air pocket in the engine.
More likely the temp sensor has gone bad than the gauge is actually bad.
There is no reset for the fuel gauge. The sending unit in the fuel tank has probably failed.
Can be a defective temperature sending unit. If you just chance the coolant can be air trapped in the cooling system. You would need to bleed all air from the system. Can also be a defective gauge, but highly unlikely.
mostly likely something wrong with the sensor or gauge.
No - the gauge reports 'real-time' the engine temperature. If it is wrong, there is a problem with the sending unit on the engine. This is a pretty easy fix...
This is not a job for a novice as much can be harmed when working with the printed circuit etc. Take it to a garage.
Well, assuming your fan is operating normally, it's possible your radiator is plugged up, either internally with gunk, or externally with dirt, bugs, and fluff.
There is a battery light above the engine temperature gauge
i dont really know but i think it is 700k? i d k you tell me
The system has 2 valves, like car tires. The recharge can(s) have a fitting for these and probably a gauge. One will be on high side and one on low.
I believe that is Motorcraft DY961
A thermometer is a device that is used to gauge temperature. Mercury style thermometers used the elemental liquid in a tube of measured diameter and height. The higher the temperature, the higher the observed mercury level is. Thus, the height of the mercury uses marking to indicate which air temperature corresponds to the given height of its liquid expansion.