What's that "hybrid" sound when braking?

Edina__Monsoon · Nov 14, 2018

New(ish) 2018 Civic Touring sedan owner here. I guess I usually have my music (or podcasts) pretty loud that I haven't noticed this until today, when I was driving in silence. What is that "hybrid"-like whirring sound I hear when braking/slowing down in traffic? I owned a Camry Hybrid 7 or 8 years ago and it reminds of that hybrid electric whir sound you'd here when accelerating a low speed. Not a complaint. I kinda like the sound. I'm just wondering what the source is in the Civic.

Deezy · Nov 15, 2018

Turbo spool?

joshhjackson2112 · Nov 15, 2018

I know exactly what you are talking about but I have no idea. Makes me feel like I am in a futuristic car or something.
I kinda thought it was something to do with the heat/air. Maybe not. But your right every time I stop at a stop sign I hear it.

Ladyluck · Nov 15, 2018

Deezy said:
Turbo spool?

I love that little chirp.

VooDoo1 · Nov 15, 2018

I believe what you are hearing is the electric power brake booster pump. What used to be a simple vacuum diaphragm back in the day, is now an electric pump. Go figure. The sound is completely normal.

Edina__Monsoon · Nov 15, 2018

Such a knowledgeable bunch on here. Thanks, @VooDoo1 !

Luckyarmpit · Nov 16, 2018

I think I hear the same think in my Civic Si. Sounds like something spooling up. I always thought it was either a cooling fan or the fuel pump or something like that. It's normal so I don't really pay it any mind.

Gruber · Nov 16, 2018

Is it something like the parking brake sound?
I've never noticed anything spooling when stopping or slowing down.

civicls · Nov 16, 2018

You have some sharp ears

Goseki · Nov 16, 2018

Funny, I was curious about this as well. Good to know.

Edina__Monsoon · Nov 16, 2018

Gruber said:
Is it something like the parking brake sound?
I've never noticed anything spooling when stopping or slowing down.

Nope. Like the smooth sound of an electric golf cart. It sounds a little space-age'y. Anyway, I think we have the answer up thread.

AndyAndromeda-AUS · Nov 25, 2018

Edina__Monsoon said:
New(ish) 2018 Civic Touring sedan owner here. I guess I usually have my music (or podcasts) pretty loud that I haven't noticed this until today, when I was driving in silence. What is that "hybrid"-like whirring sound I hear when braking/slowing down in traffic? I owned a Camry Hybrid 7 or 8 years ago and it reminds of that hybrid electric whir sound you'd here when accelerating a low speed. Not a complaint. I kinda like the sound. I'm just wondering what the source is in the Civic.

I'm more curious to know if your best friend is Patsy Stone?

Captaindicki · Nov 25, 2018

I wish I heard in the Si what everyone is describing :dunno:

Sounds kinda cool

MuffinMcFluffin · Nov 25, 2018

I just listened more carefully at my '99 Honda Civic EX and I have a sound similar to what you described.

Now I'm a little disappointed that it might just be that same sound and that it's not something that will be different/cooler. To me it's just whatever (if it's the same thing).

lzaffuto · Nov 25, 2018

I think it's the turbo spooling down. Get the gas hard, then come to a quick stop (like moving from stopsign to stopsign) and you'll hear it every time.

What's that "hybrid" sound when braking?

Edina__Monsoon

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Deezy

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Ladyluck

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