tires
The device that ignites gas in a car engine is the spark plug. The spark plug will not work without a device, called a coil, that sends a signal to the spark plug to tell it when to spark.
spark plug
When the fuel/air mixture inside the cylinders ignites.
well, when you turn of your car, it stops firing, which means the spark that ignites the gas in the engine stops.
When the fuel in an engine cylinder ignites prematurely or unevenly to cause power fluctuations and a "knocking" sound. usually occurs when an engine is very how or improperly timed.
A heat engine that uses heat to do work
A piston is attached to a piston rod in a combustion engine. It compresses the air in the cylinder block and that air ignites when fuel is injected into the block, giving the car power.
heat engine and car
Muffler
An SI engine ignites the fuel with a spark (SI = Spark Ignition) whereas the CI engine ignites the fuel with heat generated from compression (CI = compression ignition)
a controlled explosion (combustion) of fuel and air ignites expnds and is converted to rotational torque (power)
It is not so much hard for a car to start when the engine is cold as it is easier for a car to start when the engine is warm.Cars that are hard to start in the cold are usually not new cars any more and because of wear and tear there is more likely to be something that doesnt work as well. when fuel is warm it ignites more easily.