Whining noise...

[UofMfooTbaLL24]

A couple of days ago I noticed a whining noise coming from my car. At first I noticed it did it when i downshifted into 4th and let it slowly rev down. it sounds like a siren and I thought it was the gears from the aftermarket gears, but why would that start to make noise when it hadn't for 3,000 miles? I now notice it will do it when I'm in neutral too. When I'm driving and I put the clutch to the floor it stops (I think) and then as soon as I let the clutch rise, it makes the same noice, could it be my clutch, transmission, rearend?? I have no idea, if anyone has any kind of help they could lend me I would greatly appreciate it.

Thanks!

 

[MNDZA]

Mine always does that....I'm not sure what it is exactly...but its probably normal....my Infiniti used to do that too.

 

[mrpositraction]

A couple of days ago I noticed a whining noise coming from my car. At first I noticed it did it when i downshifted into 4th and let it slowly rev down. it sounds like a siren and I thought it was the gears from the aftermarket gears, but why would that start to make noise when it hadn't for 3,000 miles? I now notice it will do it when I'm in neutral too. When I'm driving and I put the clutch to the floor it stops (I think) and then as soon as I let the clutch rise, it makes the same noice, could it be my clutch, transmission, rearend?? I have no idea, if anyone has any kind of help they could lend me I would greatly appreciate it.

Thanks!

Mine does this to, but I think it is something else.
(I don't mean to mess up your thread, I just put my S/C in and this all I think about)

 

[Roger_4.6_96]

Sounds like Throw out bearing is on its last leg

 

[UofMfooTbaLL24]

I donno, as soon as i let off of the gas in 4th and im going 35 plus it instantly starts to make that noise, any other opinions?

 

[Steve777]

Does it do it all the time or just when its cold?

My car whines when its cold ...it sounds like a siren as you described, but it goes away after a few minutes ...I think its the alternator on mine ...

 

[UofMfooTbaLL24]

Well, I scheduled an appt. w/ the shop that put my rearend in, do you think I should cancel or still bring it in? Would it being cold or wet out have anything to do w/ the noise?

 

[jrc_03_gt]

Rev the car sitting still while you are not in gear. You probably will hear the noise. Rev it again (not in gear) then push in the clutch shortly after reving the noise should go away when clutch is to the floor. If it does this It cant be the gears in the rearend. It might be a throw-out bearing. Mine does the same thing. It could also be the imput shaft to the transmission.

 

[madmatt]

I know this sounds crazy, but it may be the heater core. My car whined forever and my dad, who was a mechanic for like 20 years, swore it was the TOB, when we took it in to get fixed, they replaced the heater core and the noise went away. They said the HC got clogged up and it was restricting the flow of fluid and made the high pitched noise.