Whining noise

[Mest30]

When I go WOT, my car makes a whining noise. Once I let off the gas, the whining noise continues for a few seconds before the noise goes away. My mods are in my sig and I also have a PHP intake spacer that I installed yesterday. I think it made the noise before the intake spacer was put on but I am not 100% sure. I went WOT after I installed the spacer to see if I could notice any SOTP difference. So does anyone know what it might be? It's hard to pinpoint where the noise is coming from.

[SMOKE]

Alternator Pulley Clutch...

CHeck this THREAD (http://www.mercurymarauder.net/forums/showthread.php?t=36063&highlight=alternator) (with sound) and I think you'll find you are not hearing anything
out of the ordinary.

HERE (http://www.mercurymarauder.net/forums/showthread.php?t=35657&highlight=alternator) is another okay post on this...the message being if you aren't having electrical problems
you are just fine...

Best,
Jonathan

[Krytin]

It could be the one way clutch in the alternator. If you have the early production '03 the alternator has a clutch in the drive pulley that allows the rotor to free-wheel when the engine decelerates. This usually happens and is most noticable when letting your foot off after a WOT run. You may also hear this right after you shut the engine off - especially after reving the engine up a little just before key-off.
It has the clutch to lessen accesory drive belt shock when driving in a "spirited fashion".

I need to learn to type faster!!

[SMOKE]

I need to learn to type faster!!

I'm sure your input is more valuable than mine over 90% of the time! :D

This was just one example where my n00b experience may have been worth something - so I hit the buzzer!!!

I know the first time I heard it I thought I spun a bearing on something (that is, if we're all talking the same thing here)...

Best,
JWM

[Mest30]

Thanks for the help. That makes me feel better. I havent listened to the youtube video yet because I'm at work but I'll check it out when I get a chance. Based on what I have read, though, it sounds like this is the problem.

[Raudermaster]

Notice any difference with the spacer on?

[Mest30]

Honestly, no. I'm sure it added a few hp as advertised but it's hard to tell the difference when your talking only 4 or 5 hp.

[captain]

might plug in the xcal for a reading... see if it has any news.

[Mest30]

There is no DTC, though.

[ckadiddle]

Under WOT at higher RPMs the ignition system does make something of a whining noise, sorta similar to a supercharger whine. I notice it when the radio is off. I imagine eight very muscular little hamsters all jacked up on Mountain Dew spinning their wheel at close to the speed of light when I hear that noise.

That may be the noise you are speaking of.

[1stMerc]

Under WOT at higher RPMs the ignition system does make something of a whining noise, sorta similar to a supercharger whine. I notice it when the radio is off. I imagine eight very muscular little hamsters all jacked up on Mountain Dew spinning their wheel at close to the speed of light when I hear that noise.

That may be the noise you are speaking of.

This is more like the sound than that one in the link. Heard it when i went WOT after installing the spacer. Freaked me out the first time i heard it , but no ill affects. Don't know what the sound is but it sounds cool as opposed to determintal.

As far as performance with the spacer it seems there was a bit of decrease when nailing throtle from 45 as oppose to stock. I think could need a tune or adjustment, to get the full benefit since you are getting a bit more air in. I am still running the base DR tune, prior to spacer and few other mods.

[RF Overlord]

eight very muscular little hamsters all jacked up on Mountain Dew spinning their wheel at close to the speed of light

ROFL!!!! You owe me a new keyboard and monitor...mine now have Gatorade all over them... :D