What is the purpose of a blower motor in a vehicle?

The blower motor serves a crucial function in a vehicle's climate control system by circulating air through the heating and air conditioning system. This process enables effective temperature regulation inside the cabin, allowing passengers to enjoy a comfortable environment regardless of external weather conditions. The blower motor takes the conditioned air produced by the heating or air conditioning components and distributes it throughout the interior of the vehicle through the vents. Without the blower motor, passengers would not receive the benefit of heated or cooled air, leading to an uncomfortable driving experience.

The other options relate to functions not performed by the blower motor. For instance, increasing engine power is managed through the engine's performance components, while fuel delivery is the responsibility of the fuel pump. Additionally, the vehicle's battery is charged by the alternator, not a blower motor. Thus, the role of the blower motor is distinct and essential within the context of cabin comfort and climate control.