Need answers please help?

[natsirt]

Hey guys! I resently purchased a new 07 G35 6MT...I was just wondrin..are the swishing and whistling noise when I step on the throttle specially on the 1 and 2 gear normal??? sometimes I also hear it at 5th gear..i dont know if i'm just used to driving front wheel drives or what but it definitely bothers me alot...I brought it back to the dealership but they said theres nothing wrong with it...but the sounds keep getting stronger also there are strong vibrations on the clutch, its like knocking vibrations, i put 91 on it...please enlighten me....

[joe603]

The swishing and whistling noise is probably intake noise. This is normal, though I didn't notice it until after I installed a JWT/Z-tube intake. If you don't like this sound, DONT get an aftermarket intake!

When your in gear, and let off the gas, the G's transmission shimmies a bit. The dual mass flywheel is to blame-but this is normal. However, grinding is not normal, and should be looked at if it starts.

Shut the car off with the clutch up, and listen to the sound. Now do it with the clutch down...sound should go away. Flywheel.

[G_whizz]

Welcome to NICO!!

I agree with Joe. Pay attention and see if there is any grinding, if so, get it looked at ASAP!

Geez I wish Santa got me an 07 for Chistmas!

[natsirt]

Thanks Alot Joe and G_whizz I appreciate it..i like cars alot but dont know bout them that much...how bout when your on gear and running..i put my feet lightly on the clutch and i feel very strong vibrations.. what do you think is causing that...i did that test you told me...its the flywheel.. I also tried without shutting the engine off...i push the clutch all the way down and i hear nothin, but when i let it up slowly, thats when i hear the shimming...thanx again guys..

[joe603]

The vibrations are from the flywheel. It can also make slight clanking sounds (drive-through windows are the best place to hear it).

I'm not sure of the benefit to having a dual-mass flywheel...seems to be a pain in the butt!

Any thoughts NICO mechanics?

[G_whizz]

Your very welcome...I have posted your question here to an NICO Infiniti online mechanic... I'm sure you'll get some help soon!

[maxnix]

i like cars alot but dont know bout them that much...how bout when your(sic) on(sic) gear and running..i put my feet lightly on the clutch and i feel very strong vibrations.. what do you think is causing that...i did that test you told me...its the flywheel.. I also tried without shutting the engine off...i push the clutch all the way down and i hear nothin, but when i let it up slowly, thats when i hear the shimming...thanx again guys..

Any pressure on the clutch will cause disengagement to some degree, and thus slipping and glazing of the clutch surface if it is not totally disengaged, thus necessitating it's repair sooner rather than later.

As for the whistle, have the dealer check your vacuum lines as it is still in warranty, I presume?