[Badmojo]

Originally Posted by Badmojo

New 2018 ZL1 with the A10. I noticed this today when I had the hood up with the engine running (for the first time, only 475 miles). I originally thought it was the blower, but the sound is very similar to the F150 and the ZL1 video. I can't hear it with the hood down, only when it is up.

I know this is an old thread, but does anyone have any updates on this?

Update: I don't notice the noise after the break in period.

[Tricksta]

i still have this noise, anyone got some more info?

I'm at just under 3,000 miles.

[Gunkk]

Originally Posted by Tricksta

i still have this noise, anyone got some more info?

I'm at just under 3,000 miles.

IIRC, the A10 transmission has straight gears driving the fluid pump, which make a little noise.

At 2.5 years and 8k miles, I don't notice it anymore... so maybe it's faded over time as the gears wear in a bit more, or I got just used to it.

[LT4Greg]

Mine has a slight whine at idle and have started to notice a different type noise while it’s running besides the noticeable whine on acceleration. Keeping tabs on it and no CELs yet. I’m thinking it might be the engine and supercharger are breaking in at almost 10,000 miles and the whine will be more noticeable now!

[Tricksta]

Originally Posted by Gunkk

IIRC, the A10 transmission has straight gears driving the fluid pump, which make a little noise.

At 2.5 years and 8k miles, I don't notice it anymore... so maybe it's faded over time as the gears wear in a bit more, or I got just used to it.

I'll get a clip next time I start the car, it wasn't really a little noise, it was full on like wtf is happening to my car.

it did quite down a lot after a couple minutes of running, and the car had been sitting for a couple months in storage, but still.. it was like nothing I've ever heard.

[Bruiser SS]

Just grabbed a 2023 ZL1 and wondered what the sound was coming
From under the car, unrelated to the blower. Guess I found it! Nothing serious it seems.