Whistle Sound???

[makaveli]

Hi Guy's,

I was wondering if anyone has experienced anything like this before. When I start my car first thing in the morning after about 10-20 seconds it makes a whislte noise. Although it never does this during the day or if the car has recently been driven. The whistle noise goes for about 3-15 seconds although I have never noticed it getting worse or making a louder or longer noise. It has been doing it for about 2 weeks now, and always when the car is cold in the morning. Although after work when the car is cold it doesnt do it.

Has anyone got any ideas or suggestions???

Thanks

Mark

[nemz]

i dunno but a whistle noise would sound cool why u are driving

[skylineakt]

Is the whistling noise coming from like under the car?? Have you got an aftermarket exhaust?? Was it custome made??

[makaveli]

Its an apexi turbo back exhaust that came with the car.

As far as I can tell its coming from the engine bay, although the noise doesn't stay long enough to pin point, although im guessing its comming from the exhaust side of the engine.

Thanks

Mark

[makaveli]

I thought about it being the turbo although the turbo starts spinning once the engine is started therefore the noise should occur straight away, also if it was the turbo it would make a noise constantly.

[skylineakt]

The reason I asked was maybe it is leaking exhaust gas some where like the welding might of cracked etc.

I too have notice my car sometime has a whistling noise when starting up. Not alot but I have heard it before.

It goes for about a little bit and than disappear.

Not sure dude! Have it check out.

[Guest RedLineGTR]

maybe your rubber belts..or it could be one of the wheelies on your timing belt..but if it goes away when it heats up then it shouldnt be that

[Boostzor]

Hydraulic lifters or crank before the oil pressure builds up and gets to lubing it up?

[makaveli]

Thankyou heaps for the ideas guys, im gona get it checked out this thursday wen i get some king springs fitted.

[makaveli]

Thankyou heaps for the ideas guys, im gona get it checked out this thursday wen i get some king springs fitted.

I had my head under there yesterday wen i started it and it sounds near the exaust. I just hope it doesn't end up being something bad, coz im trying to save for a cooler before summer arrives

Thanks again for all you help

I'll let u know what they say

Ciao

[chicane]

Hi There Makaveli,

Sometimes in the morning when driving off I notice a similar thing, when I back off the throttle you can hear it

for me its more of a whining/honking sound.. really hard to describe

only goes for a short time as well..

not too concerned bout it..

post back with your findings!

Cheers

chicane :burnout: :burnout:

[makaveli]

Hi chicane,

I dont hear any more whistle noises!!!!! Yesterday I decided to do an engine flush, change the oil and oil filter, while is was doing that I thought i'd clean the air flow meter and filter.

Even though I had changed the oil about 3,000k's ago I think the oil was too thick therefore being harder to mover around the engine when cold, I also noticed the engine note sounding abit more crisp

Chicane let me know how ur prob turns out, Im still a lil supsicious about the belts and I'll probably get them changed soon.

Take it easy

[DaiOni]

belts spring instantly to my mind, but it could be a multitude of things.

[Boostzor]

Chicane

If its a honking sound when you back off the throttle it could be your blow off valve leaking, if u have 1 that is.

[DCIEVE]

my car had a quiet whistle when cold which disappeared when warm. after a while the whiste wouldnt go away when warm and would be more of a muffled scream when cold, eventually the exh wheel of the turbo blew out the exh along with lotsa smoke...

how much boost you running?

[makaveli]

My car made the whistle sound yesterday for about 1-2 secs in the morning and this morning has not made it at all.

I has definetly improved with the thinner oil.

DCIEVE im running 11psi, and saving for a front mount for this summer