The engine whistles.....

[GVProtege5_CR]

The engine whistles when it get to 4000 rpm, what could it be? it kind of strange

 

[Kymerik]

Do you have a header installed?

 

[Kymerik]

the reason i ask, i installed my OBX header and now it whistles at high RPM under WOT

 

[GVProtege5_CR]

No i doesnt have a header, the engine is stock i guess... jejejeje i will going to check in the afternoon... thx for the info

 

[Kymerik]

could be a very fine crack or gap causing air release...think the blade of grass between your thumbs....My probe had a similar issue, found there was a very fine crack where the header met the cat

 

[GVProtege5_CR]

is that dangerous? what happend if i leave that for around 1 month because i dont have to much money...

 

[P-Funk!]

Unless it gets worse - not an issue for now....

 

[Kymerik]

just keep an eye/ear on it...shouldnt be too much of an issue, it might also be a dirty air filter causing the whistle...just go snoopin around pop the hood, use the throttle control in the engine bay -which is on the backside of the engine (improper termonology i know) and try to figure out where the whistle is comin from

 

[rustychops41]

Maybe throttle body gasket

 

[SocialStealth]

Defiantly sounds like a crack or leak somewhere.

I wouldn't drive too fast, or it may get bigger.
Rev the engine and have someone take a look and listen for where its coming from.

 

[P-Funk!]

Oh it WILL get bigger if it is a crack, no matter what.

If it is a spun bearing - it will get much worse much quicker.

 

[Kymerik]

i dont think ive heard a spun bearing whistle before but i'm new to this motor

 

[andrew2]

Mine was whistling when I accelerated. Hasn't done it in the past couple of days but I thought it was kind of weird. I have nothing installed though.

 

[ToNeZ90]

The engine whistles when it get to 4000 rpm, what could it be? it kind of strange

Now THATS a happy engine

 

[andrew2]

Now THATS a happy engine

lol that could be the explanation

 

[P-Funk!]

Or a vacuum leak.

 

[GVProtege5_CR]

i check the engine and the noise came like in the back, in the muffler, any toughts?


++++ps sorry for the english

 

[slavrenz]

Is your muffler the original one on the car? If so, it's probably rotted from the inside out (happened to me). If you want to stay stock, get a QuietFlow muffler from Walker exhaust (lifetime guarantee). Otherwise, get yourself a nice catback