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Engines in motor vehicles can be internal combustion, electric or a combination of the two (known as “hybrid”).

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The batteries can be charged using an internal combustion engine, fuel cell, solar cell, power regeneration and external charging.

The large end of the connecting rod connects to the crankshaft and the small end connects to the piston.

The firing order for a four-cylinder engine is 1-3-4-2or1-2-4-3.

These include the starting system, charging system, cooling, ignition, lubricating, fuel and the exhaust systems.