What do the spark plugs do?

Question:
I don't know **** about cars and they told me that my car needs new ones, but i want to know what those things do? thanks! :)

Answers:

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spark plugs ignite the air and fuel mixture in your combustion chambers in order to run your car. if these are dirty, damaged, corroded or the tips worn from misfiring your car will suffer power loss and fuel mileage goes out the window. normally replace the spark plug wires when you replace the plugs. good luck.

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Spark plugs ignite the air/fuel mixture within the combustion chamber of the cylinder head as the piston reaches top dead center (TDC). This process causes a small explosion to occur which in turn pushes the piston back down the cylinder, causing the crankshaft to rotate. As the crankshaft rotates, the drive line, which is directly connected, turns the wheels through a transmission and drive shaft or axle shafts.

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