Quote:
Originally Posted by Mageshkk
Tried with and without A/C.. the sound remains the same. It's not louder when I let off the gas though it's more audible when I let the gas off. But I'm sure it's because the engine is quieter when I let off the gas.
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Well, maybe. Our cars have a dynamic charging system, an early regenerative braking. When accelerating, a clutch on the alternator pulley disengages, reducing parasitic loses, and giving you more accessible power. When decelerating, the clutch engages, increasing drag, and boosting engine braking while charging the battery. It's a great idea, but some people have had issues with noise.