>Would someone please tell me how an electric fan pulls power away from the
>engine???
OK
>Sure it requires power to run, but that alternator is running all the time
anyway.
Not exactly. The alternator is essentially freewheeling until the voltage
regulator
calls for charging. The generation of electricity when the voltage regulator
is "on" does indeed take more engine power than when the voltage regulator is
"off".
>The electricity is coming from the battery
Yes.
>and
>being replenished by the alternator.
Exactly. Electricity not used by an electric fan won't need to be replenished.
Phil "no electrical engineer" Ethier
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