I recently purchased a 2002 S and changed the engine, tranny, and diff oils with Honda fluids (no worries, I put 75w90 gear oil in the diff). After everything was done I started the car, got in and blipped the gas a little and I heard a noise that sounded like it was coming from the engine, like an electric motor was running. It went off after about 1second. Tried to repeat it but no luck. It did it again after getting gas at the gas station after I started it. Is there an electric water pump on the S2000's or something?

I'm just trying to figure out what this noise is, it's worrying me a little.


In other news: I got sideways for the first time today with my dad in the car. Complete accident hah! Low on gas, brand new tires, and very cold ground equals an easy slide.

 

Are you referring to clutch buzz?

 

Clutch buzz is only heard when the car is in gear and you are decelerating. Correct me if I am wrong.

 

secondary air injection system

 

Does it sound like a little turbo?

Sent from my SCH-I535 using Tapatalk 2

 

On a cold start, wait exactly 55-60 seconds. If you hear the same sound you've been hearing, it's normal. I'm not sure what it is, but it's definitely something disengaging/shutting off. I guess you could relate it to the sound to that of a blow off valve lol.
Sound does not just happen on cold starts either, you'll hear it on a warm start after a couple of seconds as well.

 

No, not a turbo, maybe it is the air injection, but it doesn't sound at all like air moving. It sounds like an electric motor running, that's the only way I can describe it.

 

 

Let's see how many times we gotta post this before anyone believes it.

 

I don't think I ever had to quote myself before but maybe one more time will do it