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Hissing Burst Under Hard Acceleration


andyxr6t

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  • Member
  • Member For: 14y 3m 7d
  • Gender: Male
  • Location: Newcastle

Hey all,

Last few days I have noticed a strange hissing noise at higher RPM.

The hissing happens in short bursts(about 2 bursts a second)and I have only noticed it in higher gears under hard acceleration.

The car has been tuned for well over 6 months and I haven't noticed this before, and was just unsure if it was something I should get checked out?

It sounds as if the waste gate it dumping extra boost, however shouldn't the computer be controlling it better?

Thanks for your help

Andrew

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  • Member
  • Member For: 14y 3m 7d
  • Gender: Male
  • Location: Newcastle

Ive had a quick look, but didn't look at the full intake as I though a boost leak would be present all the time not just in bursts.

I will have a good look tomorrow.

It defiantly happens in quick repetitive short bursts, about 2 a second until I drop off the gas.

Andrew.

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  • Ford Nub
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  • Member For: 12y 11m 20d
  • Gender: Male
  • Location: Gold Coast

check the bolts that hold the turbo housing to the manifold. Mine was making a similar sound. Was missing 1 bolt and 2 others were finger tight.

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  • Tampon inserted, Auto Acquired, next purchase a new handbag
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  • Member For: 16y 8d
  • Gender: Male
  • Location: Vic

Mine made a similar noise when missing a turbo bolt.

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