Fluctuating electrical power?

[befarrer]

You can hear your fuel pump? I've never identified that sound on my car..... of course, I only noticed my door chime a couple of days ago.

It's not very loud, just a light humm, but I also have an AWD, so they are closer and pointing forward.

I should also add, I noticed mine to do this most consistently when I suddenly release the throttle to idle. From even a light cruise throttle position to idle

[454cid]

You can hear your fuel pump? I've never identified that sound on my car..... of course, I only noticed my door chime a couple of days ago.

It's not very loud, just a light humm, but I also have an AWD, so they are closer and pointing forward.

I should also add, I noticed mine to do this most consistently when I suddenly release the throttle to idle. From even a light cruise throttle position to idle

I wonder if your voltage regulator isn't responding well to changing RPM and load. Mine is doesn't seem to be affected by anything I do and it hasn't happened for a few days now.

[454cid]

Did it again today...and I'm pretty sure that it also causes the engine to lose power. Today on my way to work, and at work just starting home, it feels like s slow shift. This happens at neighborhood/parking-lot speeds. At the gas station, I caught it once with the 850 OBD2 app on my phone and the voltage dropped to 12 volts, briefly.

I ordered a voltage regulator Saturday Afternoon. Hopefully, it's just a flakey regulator causing the issue.