someone please direct me to a previous topic on this. my 04 roadster makes a horrible whistle when cold, overnight not a temperature cold.. it is almost like a radio ground noise that is variable in noise getting louder with speed increase/decrease. after maybe 3 miles the noise dissappears. have not taken to dealer yet...figured that it will not do this when they check it out...and also hoped someone here knew of this problem...any help will be greatly appreciated.

 

yea, mine does it too on my enthusiast. except after i drive for a few miles, it gets louder and never quits untill i reach a stop, then does it again after another few miles. so i'm stuck on the same problem.

 

thinking it is in the drive train...clutch maybe...bearing...something...anybody....chime in on this one if you know...
seems fine after a couple miles and warmed up

 

its the Vortech hidden in your glove box

 

how many miles do you have on the car? sound like one of the belt idlers to me.

 

35,000 on 04

 

Mine does the same thing. Only when its cold, its more like a high pitch tone. Then it goes away when the car is warmed up. Its a 2006 Enth with 22k miles. I do have an JWT flywheel and Nismo clutch.....could that be it?

 

Mine does the exact same thing.. Sounds like its the tranny too me..

Never really bothered me.. Makes me feel like i've got a dogbox..

 

has anyone been to the dealer on this? curious to what they say

 

im going to ask the dealer tomo b/c i have the same problem, a whistling niose and it gets louder as you drive then goes away after about 2 miles. only happens when its cold outside, never when its warm outside.

 

The dealership is going to tell you guys to bugger off.. I don't pretend to know what it is but every Z i've been in does it.. MT Z that is.

 

I have an 06 base,,stock,,9k miles,,and my Z has made this (hairdryer type sound) when its cold, since I bought the car new. The sound increases/decreases with speek for a few miles until things are warmed up. I always thought it might be the speedometer cable or something? It is annoying,,thank goodness mine goes away after a few miles.

 

Speedmoter cable? You know your car is DBW right?

 

Mine does this too. It sounds more like when you blow on a beer bottle to make it whistle. It only does it for a few seconds when its cold and fluctuates with speed, so im thinkin its related to wind passing over something or thru something.

Might have a fitting/opening or soemthing that contracts/expands as the car heats up and the noise goes away. i'm guessing it has to do with the intake. I have a poop charger, so maybe that has something to do with it. i havent worried about it since it goes away pretty quick.

 

Not sure if this is the same problem you describe…

I hear the same sound (whistle) after replacing my transmission. I have a ’03 Performance model that exhibited the grinding/synchromesh problem. Nissan replaced my transmission. The new one is much better in every way, but “whistles” when it’s cold. The noise isn’t always there; but, when it is, it goes away after 4 or 5 minutes of driving.

--Spike

 

I've got the same problem that just showed up yesterday after the temp dipped down into the 30's. From what I've found its related to the trans/flywheel/clutch. Anyone get feedback from the dealer? 52k miles here.

 

I believe its the tranny Pilot Bushing. ive taken my car to the dealer for this, but havent gone back to get this fixed

 

Same here. My 03 has "whistled" when cold ever since I bought it three years ago. Since the noise goes away and the car runs fine I stopped worrying about it.

 

yeah mine just started doing the same thing as well

 

I have an '07 and I think I hear it. Although it tends to go away under heavy throttle.