Eirik

Hey, I have a 99 Ac, EL. I have an intake on it, and when i drive normal, it's fine. But when I step on it, I hear a hissing noise(like air or something). the car drives fine(isn't turbo'd).

Any idea's,suggestions would be appreciated/

Thanks, Eirik

Double B

It's your intake. Because is is not as restrictive as your stock intake, you will hear it "sucking" in the air.

Midori

As I said in the Pm could be a bad ground... sound coming from speakers... check your battery terminals.

chris_v2

Its not a bad ground. Its your intake, its normal. Dont sweat it.

k_r_a_c_k_e_r

iTrader: (3)

Intake.

kwikb16a2

alot of ek's i've driven have this stupid hissing noise when you reach high rpms......im pretty sure its a pin hole in the exhaust

Double B

Don't think so. Like Chris has said, and myself, it is a common sound out of the aftermarket intake. Don't think a pin hole is going to make a hissing sound.

CivicGurl

I have absolutely no knowledge about cars really but my intake on my old Honda made a hissing sound as well from the day it was installed so I always assumed it was normal.

kwikb16a2

I think so, mine and both sisters civics make this hissing noise at high rpms and its coming from the muffler area

kwikb16a2

i know all intakes make a hissing noise at idle but he saying at high rpms

Tyson09

iTrader: (1)

maybe its a hiddin turbo...spoolin, hahaha

Pyro

i had that before, it's definitely the intake. If you have a generic no-name intake it appears to do that a lot, but it's nothing to be alarmed about....if it bothers you get a brand name intake.

like everyone says here, you get what you pay for.

Double B

You might want to re-read what he said.

kwikb16a2

lol i did read it.....it says when he drives normal its fine but when he steps on it it makes a hissing just like mine and both of my sisters car

Double B

No prob, but to me, high rpms and steps on it doesn't mean the same thing. At any rate, I think we can pretty much say it is his intake that is making the hissing sound when he "steps on it" LOL

MPR

Even a small 4 cylinder engine sucks in A LOT of air. Your restrictive stock intake tract which you removed when you installed your aftermarket intake was designed to quiet down the sound of all that air being sucked into your engine, especially when you 'step on it'. The aftermarket intake is just an aluminum pipe with a cone filter stuck on the end. There is nothing to dampen the sound of the suction and that is what you hear. Some air filters will whistle at different rpms, throttle positions. I garentee you 99% it's the air being sucked through the filter. (not a pin hole in your exhaust). Some times if you reposition the air filter on the end of the tube (just turn the filter) it will not whistle as bad. Can't hurt to try. The sound is normal so don't worry.

The only other thing is you may have a vacuum leak, look for vacuum lines that may be disconnected around the intake and intake manifold.

fingolfin

so its agreed.. its the intake...