I went to start the car today and heard a noise. Before you get all wacky on me... no not the roar of the engine, something else. When I turn the key two positions forward I hear what is like a buzzing noise almost like a motor is being held from operating or turning, then it goes off. I located the noise as being from a small motor like object in the center of the car from passanger to drivers side, and directly behind the cover to the engine. It seems to vibrate loudly. There are no sparks, unusual heating etc. I can't even see that there is an effect as of late. (No it's not the ABS this is before you start and I don't remember it from before) I do have the V-Tech kick in appropriately and I notgice no loss of power. Can anyone take a guess at this? I'm in Jersey for the weekend and would be willing for a nearby brother CL-S owner to have a look. Thanks

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Silver S
NOW IN THE SHOP AFTER ACCIDENT

 

Mine does this, but usually after i roll a few feet ... I have no idea ...

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Black 2001 Type S
*Xephyr Cold Air Intake
*PIAA 19169 Road Lamps
*Acura Winter Mats
*Mudguards
*Mobile 1 Synthetic
*Rockford 500a2
*Pioneer 12" @ 400w (x2)
---Still 2 rims not scratched---

 

Where in NJ are u , i will take a look at it.
I really dont knmow jack shit about things like that but will be more then happy to look.

 

This is FAQ: "ABS Built-in Self test Buzzing noise"

You are hearing the ABS running a Built-in Self test, (or calibration test). It happens twice at 5mph and 18?? MPH.

This is a Normal behavior for the CL-S.

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Black, Ebony, 3.2 CL Type-S.
- Acura NAV.
- 3M clear bra (full front bumper, and side mirros)
- Wheels locks.
- Mooonroof visor
- Splash guards,
- Winter mats,
- Trunk liner,
- Acura Spoiler.
- Valentine V1 Radar Locator.
- PIAA 19169 road lamps.

 

It is the ABS systems checking you out !

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2001 CL Type S Black/Ebony w/NAVI, PIAA bulbs, Tinted windows, JL Sub-woofer/Fosgate 250 watt amp, otherwise pure stock
1998 Accord Coupe EX-V6
Black Currant Pearl, PIAA bulbs, tinted windows, Fosgate 500 watt amp, Eclipes 6X9's,JL Sub-woofer, otherwise PURE stock !

 

Wish it was but it's not. I know the ABS noise (more of two hums) and that should go on while you are moving. This happens just when the key is turned to the position just before start. Definately a buzz like the actuator on a motor isn't turning.

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Silver S
NOW IN THE SHOP AFTER ACCIDENT

 

If in doubt just take to the dealer immediately. If you afraid from driving the car, call Acura TLC and they would give you a free towin to the nearest dealer.

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Black, Ebony, 3.2 CL Type-S.
- Acura NAV.
- 3M clear bra (full front bumper, and side mirros)
- Wheels locks.
- Mooonroof visor
- Splash guards,
- Winter mats,
- Trunk liner,
- Acura Spoiler.
- Valentine V1 Radar Locator.
- PIAA 19169 road lamps.

 

The object you are describing is the electric motor that moves the doors inside the intake plenum it is possible that this device is making a small noise at engine startup.I have not heard any of them make noise nor have I had any complaints about it so it may require attention from your dealer.Jens

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1992 mazda Miata lowered with Eibach springs KYB AGX adjustable struts Sparco racing buckets 4 point safety harnesses Momo steering wheel lo profile headlite system with PIAA superwhite bulbs Custom audio system Custom gauges Jackson racing supercharger with header and Greddy cat back exhaust and a ton of other stuff 2000 Honda Civic on APEX coilovers Full Alpine Audio system factory fogs with Piaa bulbs Catz ZETA headlamp system tinted custom taillites and on and on

 

Just want to say thanks for the replies. I will have it looked at this week. The car drives fine but I think you guys who have had it for a while just know when something is different. If ya have any other ideas I appreciate the feedback.

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Silver S
The Silver S is repaired!
Great to have back!

 

When I turn the key to the 2 position, it does it's self check or diagnostic test and I always hear a little hummy noise and then it goes away when the maintenance indicator turns off. I'm not sure if this is the noise you are referring to. The same thing happens to my bro's and my gf's accords.

 

Mercury, Take your CLS to Dr.Jens in Maywood,NJ.
Silver CLS on LI.

 

Are any service depts open ojn SAT? I know a honda dealer near where I live but they don't have a clue about the CL-S.

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Silver S
The Silver S is repaired!
Great to have back!

 

My guess would be that the fuel pump is priming. This is almost a standard on EFI cars. It probably runs for about 2 seconds and then cuts off??

This is normal almost all new cars should do this. The fuel pump cuts on to pressurize the fuel supply system. I normally don't start the car till it has run; you typically get quicker starts (subjective idea, you wait for it to prime which adds time to starting??)

 

Don't worry just the ABS depressurizing. happens to all of us.

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CL-S
White/Ebony/Navi/Spoiler/Visor/Full Bra/Mud Guards/Cargo Net/Acura Car Cover/Tint 20%,35%,5% on Sun Roof, Rockford 250a2 Amp w/JL10w6 / K&N Drop in Filter. Comptech Springs. Polarg m-6.
Comptech Headers, Comptech Sways, Eurolite Xenon Crystal high beams.
AEM CAI once they decide to make the dame thing.
235/40/17's or 225/45/17's once I found out which one works for me.

gtech 0-60 6.03 w/ 438 pound load. preheader.

 

OK I went to Springfield Acura and had a look and listen to a new S. The problem is the motor behind the engine. When I turn the key it sounds like gears may be striped or something. I unpluged the motor (easy just press and pull) and there was no sound. What does this motor do? Acura can't have a look until tuesday. There is a cable that runs into a grove attatched to the motor. Now... I turn the engine on and runs fine. I lift the hood and lean over and move the cable by hand and find no change. What should be happening?

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Silver S
The Silver S is repaired!
Great to have back!

 

Like Scalbert said, I believe it is the fuel pump. Every car with EFI that I have been in does this.

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2001 CLS Soon to Come!!!

 

haha that ABS checking thingie scared the shit out of me when i first bought my car, cuz my old avalon never did that before.
i think cl-s's engine is not as quiet. it always makes different kind of noises, i m just ignoring all of them.

 

That motor is part of the mechanism for VTEC operation in your car.Part of your VTEC system involves the rocker arms switching over to the high lift lobes on the cams,the other part is this motor you describe that changes the flow of air thru the intake manifold.I assume you compared the motor on your car to another similar car?The car should run without it but it being disconnected may cause the check engine light to come on.Jens

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1992 mazda Miata lowered with Eibach springs KYB AGX adjustable struts Sparco racing buckets 4 point safety harnesses Momo steering wheel lo profile headlite system with PIAA superwhite bulbs Custom audio system Custom gauges Jackson racing supercharger with header and Greddy cat back exhaust and a ton of other stuff 2000 Honda Civic on APEX coilovers Full Alpine Audio system factory fogs with Piaa bulbs Catz ZETA high beam headlamp system H.I.D. Xenon low beam tinted, custom taillites and on and on