The cooling fan may be inoperable, either the fan clutch is bad or the electric cooling fan isn't working. Need to know what year, make and model vehicle you have to help you more.
If it comes on it means the temperature of your engine is too hot. Your engine is overheating.
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The average aircraft will have temperature gauges for the following: Outside air temperature, Engine air inlet temperature, Engine exhaust temperature, cabin temperature, and that's just on a small aircraft. So which temperature gauge do you mean?
Do you mean the switch that automatically kicks down the idle when the engine reaches proper temperature to drive and indicates with the red light going out on the dashboard? It is in the thermostat housing I believe.
It means the engine may be overheating.
P0118 means: Engine Coolant Temperature Circuit HighP0118 means: Engine Coolant Temperature Circuit High
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Gas velocity involves the variables of system temperature and molar mass of its molecules. Simplified, the velocity as a root-mean-square equals the square root of two-times the kinetic energy divided by molecular mass.
Overheated.
The enigine is running too hot...
engine over temperature condition.
I Dnt know