Strange Noise

[becks]

Have developed a strange sucking noise from engine bay somewere.when under load and in boost I can here a faily loud sucking it gos on and off on an off its a little hard to explaine.Just woundering if any one has had this problem and hopefuly I can find a quick fix.

[XRPete]

Mate check all you turbo piping first for cracks,holes or loose clamps. See how that goes......

[becks]

Will try that tomorow.I hope it is something like that. It just sounds lie its gunna be hard to find because I can only hear it at about 3.5 -4 rpm

[Toecutter]

I had a massive hissing noise, was a tiny pencil sized hose under the throttle body, but could hear that even at idle.

[RHR]

Has your car been tuned. I had way more induction noise when my car was tuned

[Ghosti]

Or a K&N and/or Phoon snorkel?

I did both recently and I've now got a pretty noticeable and weird sucking noise (sounds kind of like turbulence), as well as the extra turbo noise I expected but I just put it down to more air moving through the system.

Hope I'm right...

[RHR]

Yeah that could be another reason

[becks]

Had it tuned a few days ago. It dose sound like an induction noise but it is on and off on an off dosent seem to efect performance though. hard to tell at that speed and revs.

[antigravity]

Had it tuned a few days ago. It dose sound like an induction noise but it is on and off on an off dosent seem to efect performance though. hard to tell at that speed and revs.

Loose manifold??

I have the same problem everynow and then, and it almost sounds like a spitting/spluttering under high revs, under load.

[becks]

Just checked a couple of manifold bolts the ones I cpuld get to and they were tite.I will check them all tomorow though to rule that out. the niose isnt a splutter though it more of a suck for a few seconds then quite then suck.