Quote:
Originally Posted by HighlandPete
Energy management is controlling alternator charging rate to save fuel. It is not like a conventional charging system, according to the battery SOC (state of charge) it can be very limited. Maximum charging rate takes place when you completely lift off the gas and/or are braking.
It could be a sign of a failing alternator, but check out the serpentine drive belt/assembly as well, before any assumption it is definitely a faulty alternator.
PS: Does the same sound occur if you are stationary and switch on high energy consumers like heated seats, rear heated window, etc.?
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Ok, so I have an update. I turned on both vented and heated front seats, rear defrost, AC all while the vehicle was at idle and the noise never came on. It is only on when I lift my foot from the accelerator. This is funny, but I found the sound on a video. It's at 8:15 and turns off at 8:33 in the video. Hopefully your speakers pick it up! PLEASE HELP!