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Engine hissing sound on off.

  • Tonsing
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10 May 2019 07:05 #29480 by Tonsing
Engine hissing sound on off. was created by Tonsing
My car i20 gives hissing sound only when off from on.

Cleaned the TB unit, check all fluids level all ok. I checked the pcv valve either in both directions and in one direction it's block and the other it's ok. I also feel a sucking from the pcv hose when block by my fingers. Also shaking the pcv, it's not clogged. All possible options done. Please help. Thanks.

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10 May 2019 07:19 #29482 by guafa
Replied by guafa on topic Engine hissing sound on off.
Hi tonsing,

Is there any hesitation or idle higher than normal?

Do you have fuel trim numbers?

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10 May 2019 10:39 #29491 by Andy.MacFadyen
Replied by Andy.MacFadyen on topic Engine hissing sound on off.
Brake servo hose ?

"There's always a catch ---- Catch OBD2 ."


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10 May 2019 15:27 - 10 May 2019 15:27 #29501 by chief eaglebear
Replied by chief eaglebear on topic Engine hissing sound on off.
my thought was a little vac leak that is making noise at a particular manifold pressure- maybe take a squirt bottle and do a scanner danner vacuum leak check just a thought as you described the problem happening apon a shutdown
Last edit: 10 May 2019 15:27 by chief eaglebear.

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