Exhaust Tweeting?

[scotsman]

When sitting at idle, I blip the throttle and when it dies back down to idle again it tweets on and off - with the sound coming from the exhaust.

Would the dump value cause this?

Cheers

Richard.

[scotsman]

Sound is definately coming/caused by the back-box itself. Wonder what could go wrong inside to cause that noise. Strange.

[StewartyBoy]

Heat shield rubbing?

[jcscoob]

"tweets" !!

[RS Grant]

Ok, what is a "tweet" noise mate...

Cheers,

Grant

[jcscoob]

Does it sound like this ?

[scotsman]

That tweeting/chirping type noise that the WRC cars make - is it the dump valve?

However, mine isn't coming from the engine bay - it's the back box itself that is making the noise. Weird that it's not on full revs - it's when you blip the throttle when stationary and the noise happens when the revs are dropping back down again. Very stange!

Probably just need to source another second-hand standard WRX backbox.

Richard.

Edited October 19, 2008 by Scotsman

[marky.t.s]

has any of your neighbours reported their budgie missing??...just a thought.

[cullenmin]

Its a weird sound your describing but without hearing it then I guess no-one can diagnose exactly where its coming from mate.

[scotsman]

Yep - you're right.

I'm happy enough that I now know that it's not coming from the engine - must be something loose in the backbox.

I'll try and see if I can get a recording of the little feathery guy for amusement sake

Richard.

[jcscoob]

  Scotsman said:

I'll try and see if I can get a recording of the little feathery guy for amusement sake

Richard.

[thefastone]

heatsheilds.