Ron M. wrote:
> Whenever the alternator of my '98 Accord sedan gets an additional load put
> on it, the headlights of the car temporarily dim to some degree. This
> additional loading seems to take place whenever I turn on the rear window
> defogger, A/C, or fan. The alternator belt isn't very old at all and it
> isn't loose either, so I am suspecting that the alternator itself could be
> on its last leg.
>
> Other than the alternator belt or alternator itself mentioned above, is
> there anything else that could be causing this dimming of the headlights
> whenever HVAC controls are turned on?
>
> Thanks in advance for any help/advice that you may have to offer me on this
> one.
>
> Ron M.
>
>
if you're talking about with the motor at idle, it's normal. all cars
do it. look at the power output of an alternator vs. rpm's.