High Pitch Noise

[7yphon]

Well GTST25 was correct I looked at the turbo and it was only being held on by two nuts and they where loose also put two more nuts on and made sure they where on tight this time and she is all good

PS Does anybody know anything to stop this from happening again?

I know its cheap to get more nuts but I dont really want to keep replacing them every 3 or so months

Edited September 11, 2006 by 7yphon

[nfi]

Buy spring washers and those brackets that stop the nuts from turning. Forget what they are called.

[dead32]

those flat plates with the bits u tap over the end of the nut head, locking tabs?

[Adriano]

definately locking tabs, dont use spring washers as they cant handle te heat, if there is enough thread, put a second nut on the thread and lock them up.

[LTHLRB]

something just happened to my turbo on my r33. When engine is revved and boost is starting to build up it makes a screaming noise, sounds something like an external gate. Its loud, sounds alright but i doubt it can be good for the turbo, took the intake pipe off, very very little shaft play back and fourth and turbo spins perfect, very free spinning also no chips on blades.

[Rolls]

Exhaust leak?

[85URK]

i have a similar problem at the moment , im about to find out soon, coudl be the turb bolt thing or as has been suggested to me, one of the studs might be broken off which is causing a leak......

[mad082]

when you hear the noise is the steroe on (even if it is turned right down)? i get feedback through the speakers when the stereo is on (even volume at 0). if i turn it off it goes away.

[Sinista32]

My 32GTR has a whistle noise all the time from 800 rpm to redline. I can hear it through the centre vents. I think it's from the Turbs but I cant determine what it is if its not even spooling (r34 N1's). Mech thinks the front turbo has a problem.

Like another post I'm going to wait until something drastic happens but sure would like to know for certain what it is.

PS. the engine has just been rebuilt - it was there before and it's there now.

[tiesto]

i have the same high pitched noise coming from my car

it comes around from the turbo area side but im not sure when u listen close up it sounds like the other side

couple of people told me its normal and its possibly the powersteering pump

i just checked the 4 bolts and locktabs on the turbo and they are very tight.. im guessing its powersteering pump that needs replacing or its just normal and im getting paranoid

my noise happens when the car is warm, after a decent boost, then at idle you hear it whining and when you rev to 1500-2000rpm the whinding goes louder, but then u take it for a drive again and it disappears, then comes back and then disappears.. not to sure what to expect

anyone else had this and replaced powersteering pump?

[7yphon]

Tiesto:

Do you have a front mount?

A mate of mine has a 4 door R32 and it made a noise like that turned out to be the Air passing through the Intercooler Pipes

LTHLRB:

I wouldnt because if the tubo is just hanging off you could make the turbo worse thats what Ive been told by Turbotech.

Sinister32:

I know what you mean can fix whats not broke right?

[tiesto]

yes, I have a fmic

it's strange it never made the noise or atleast I didnnt notice it when I installed the fmic a while back only as of the last few weeks maybe a month I've noticed it more so... not sure

[1kool34]

Mate i had a nasty squeal from my engine bay once. Couldn't find a boost leak, bad belt or anything. Then i realised i had some broken exhaust studs, started to fix these and realised the the turbo had come loose from the manifold (no idea why ??? bought the motor from a wrecker in sydney had it fitted by a mechanic) and the squealing noise was the pressure coming out from between the join. Long story short removed the turbo replaced the gasket and bolted it back together and wala . This noise was only on 3/4 to full throttle. Went heaps better after that, no shit haha

[Mr Italy!]

  tiesto said:

i have the same high pitched noise coming from my car

it comes around from the turbo area side but im not sure when u listen close up it sounds like the other side

couple of people told me its normal and its possibly the powersteering pump

i just checked the 4 bolts and locktabs on the turbo and they are very tight.. im guessing its powersteering pump that needs replacing or its just normal and im getting paranoid

my noise happens when the car is warm, after a decent boost, then at idle you hear it whining and when you rev to 1500-2000rpm the whinding goes louder, but then u take it for a drive again and it disappears, then comes back and then disappears.. not to sure what to expect

anyone else had this and replaced powersteering pump?

I have this one, my mechanic has explained the whine to me a while ago and ive kinda forgotten what he said, but something about the cams have now become worn in and its getting stuck doing its variable valve business when its idleing... Nothing to worry about he recons.

Worst explaination... ever.

[tiesto]

well that might explain it cheers mr italy, i might get someone to take a look at it

ive also noticed that on my exhaust manifold there was a snapped stud (the last stud which is closest to the firewall), and the nut and half the stud fell out today upon further inspection... so now the other half of the stud is in there, i plan to fix that asap but i doubt its related as i dont have a exhaust leak, just a whining sound

[Freddy Kruger]

mines started doing this, but only at idle... a little revs and its quiet. is there something i can do to f*k it off? the noise is terrible :S

[tiesto]

not sure

i might get a workshop to diagnose my one and see what they say

[7yphon]

yer I have a stud missing from the man when I was changing the turbo back last year, When I removed the heat shield the nut and half the bolt fell off, I was like dam better fix that but doesnt seem to have made a dif so meh.

There are a few things this that makes noises that the f**king shitty thing you have to just try and go through the list until its gone at least you know most of the part that where replaced are new lol.

Edited September 18, 2006 by 7yphon

[banshee_04]

  otto said:

mine does exactly the same started doing it once i put on a pod so im guessing its because of the way the air goes through the pod at that particular point causes a whistle its definatly not a problem or because anything is shagged and i wouldnt be doin any major component changes to fix it

Ahh! What is this noise (rb25 r34) Loose bolts turbo? Yep! Did them up, Ahh! Still there, Hint: does it on idle, tap the accelerator, gone?? Hard to find but seems to be seals on throttle motor (tract control) when engine is finally hot and under vacume there's that squeely noise. Anyone had this one before??? Cars done 94000klms just started. Those Whitty People with the flashy lights pulled us over "Whats under there mate a dead Cat" HA HA didnt even know what he was looking at any way. $79 Part of 2007 Label still affixed (I was going to scratch it off eventually), $200 Didnt like My HKS Induction.