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#4707578 - 03/26/18 02:35 PM 2002 Civic LX - noise from intake resonator
y_p_w Offline


Registered: 05/06/05
Posts: 3650
Loc: SF Bay Area
Any idea why this would happen? I heard a whine but I thought maybe transmission. But I popped the hood and the noise was clearly coming from the box that this guy took out:


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#4707584 - 03/26/18 02:45 PM Re: 2002 Civic LX - noise from intake resonator [Re: y_p_w]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 4068
Loc: New England
Maybe it's cracked or connections to it are loose??
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#4707655 - 03/26/18 04:03 PM Re: 2002 Civic LX - noise from intake resonator [Re: y_p_w]
eyeofthetiger Offline


Registered: 11/18/17
Posts: 683
Loc: South Carolina
Because race car?
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2017 Ford Fiesta 1.0T - Valvoline SynPower 5W-20, Motorcraft FL910S
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#4707756 - 03/26/18 06:07 PM Re: 2002 Civic LX - noise from intake resonator [Re: y_p_w]
JamesBond Offline


Registered: 12/13/06
Posts: 866
Loc: midwest
The transmission is directly under that thing. Did you remove the resonator? Did the noise go away?

I removed my resonator once then accidentally dropped it and broke off one of the mounts, leaving a hole that I can fit a few fingers in, but it doesn't really sound any different.

Maybe you have a leaf or some other trash in there.

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#4707954 - 03/26/18 09:50 PM Re: 2002 Civic LX - noise from intake resonator [Re: y_p_w]
eyeofthetiger Offline


Registered: 11/18/17
Posts: 683
Loc: South Carolina
Just take the resonator all the way off and inspect it. It could contain the carcass of some rodent that picked the wrong place to build a nest. Drive the car without the box and see how it sounds.


Edited by eyeofthetiger (03/26/18 09:51 PM)
_________________________
2017 Ford Fiesta 1.0T - Valvoline SynPower 5W-20, Motorcraft FL910S
1988 GMC K1500 4.3/700R4 - Supertech 15W-40, Fram TG3980
1986 Ford Ranger 2.0 - uhh

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#4708054 - 03/27/18 12:28 AM Re: 2002 Civic LX - noise from intake resonator [Re: eyeofthetiger]
y_p_w Offline


Registered: 05/06/05
Posts: 3650
Loc: SF Bay Area
Originally Posted By: eyeofthetiger
Just take the resonator all the way off and inspect it. It could contain the carcass of some rodent that picked the wrong place to build a nest. Drive the car without the box and see how it sounds.

I should probably do that first. It sounds kind of gross if there used to be something alive in there.

My wife thinks that the engine is dying, but just at idle I could hear the noise coming straight from the resonator. I still don't know exactly what it does. I know that it's the air intake, but I've had other cars where the resonator (which I still don't quite understand) was built into the air filter box/case.

OK I looked up what it does. I don't know much about pressure wave harmonics, but apparently it's needed for performance reasons.

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#4708364 - 03/27/18 10:45 AM Re: 2002 Civic LX - noise from intake resonator [Re: y_p_w]
y_p_w Offline


Registered: 05/06/05
Posts: 3650
Loc: SF Bay Area
Iím not near home right now and my wife calls me and tells me that itís not working. The car is safely on the side of the road now.

I guess whatever was loose in there plugged it up and itís not taking in air.

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