common fails of lsc bad ignition module,mounted on distributer,bad fuel pump fail when hot, lso sticking egr valve, also bad EEC relay will cause crank with no start and nopulse signal to fuel injectors
The cooling fan comes on when the engine reaches a certain temperature and is controlled by a sensor switch that kicks the fan on when the temperature reaches the preset temp.
The engine fan on a 2003 Pontiac Montana works by turning on when the engine reaches a certain temperature. It then blows cool air across the radiator and engine to maintain a constant temperature.
It's not supposed to be on. It comes on when engine reaches certain temperature. But if you see that temperature gauge is going in the red area you need to check the fan relay, its fuse, and the temperature sensor.
The radiator fan will start to work once your engine reaches a certain operating temperature.
a temperature sensor that detects when the car reaches a certain temperature before it overheats which kicks on the fan to cool the engine. the fan may not be grounded properly which causes the blowing of fuses to prevent a fire.
some fans are driven directly via a fan belt to the crank shaft. Others are electrically driven and are actuated when the engine reaches a certain temperature.
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The coolant temperature sensor on a 1997 Lincoln Continental is located on top of the engine, near the upper radiator hose. It constantly relays the engine's temperature to the computer.
The low-speed fan will come on when your engine temperature reaches 180 degrees. The high speed fan will come on. When the engine temperature reaches 200 degrees.
In most cases it is 195-205 degrees F. This is the temperature at which an internal combustion engine performs it's best. And the faster the engine reaches this temperature the better.
As a "heat engine", a car engine must rid itself of heat to continue. Efficiency of the heat engine depends on the difference in temperature; therefore, as the temperature outside reaches the temperature inside, the engine stops.
almost all cooling fans run temp to help get engine warm up very quickly and may turn going the road on cold days to keep temp up in the engine