BOV Hiss

[nobleguy]

Hi guys,

Really sorry to go on about these again, but I've fitted mine this week (thanks Matt) and found that when I drive harder I get a hissing sound (like its leaking soemhow?) up to about 5000rpm, then the valve goes quiet and when I lift off higher than 5000rpm I get the customary "PSST" sound.

I read another post relating to this but no definitive answer was on it. Is this normal?
Someone suggested looking at the vacuum line for a leak but I think it looks OK.
Is there any way to fit the vacuum line wrongly maybe?

Sorry again to repeat previous questions.

Peter.

[washy]

Matt put a stiffer spring in mine. Much better!

[Matt_]

Peter,

You have a mail from me, give me a bell to discuss.

Best Regards
Matt

[lucozade]

nobleguy said:

Hi guys, Really sorry to go on about these again, but I've fitted mine this week (thanks Matt) and found that when I drive harder I get a hissing sound (like its leaking soemhow?) up to about 5000rpm, then the valve goes quiet and when I lift off higher than 5000rpm I get the customary "PSST" sound. I read another post relating to this but no definitive answer was on it. Is this normal? Someone suggested looking at the vacuum line for a leak but I think it looks OK. Is there any way to fit the vacuum line wrongly maybe? Sorry again to repeat previous questions. Peter.

Yip that someone was me. I never did get to the bottom of it. Matt can you drop me an email please, ta.

>> Edited by lucozade on Thursday 25th May 17:58

[Matt_]

lucozade said:

nobleguy said: Hi guys, Really sorry to go on about these again, but I've fitted mine this week (thanks Matt) and found that when I drive harder I get a hissing sound (like its leaking soemhow?) up to about 5000rpm, then the valve goes quiet and when I lift off higher than 5000rpm I get the customary "PSST" sound. I read another post relating to this but no definitive answer was on it. Is this normal? Someone suggested looking at the vacuum line for a leak but I think it looks OK. Is there any way to fit the vacuum line wrongly maybe? Sorry again to repeat previous questions. Peter. Yip that someone was me. I never did get to the bottom of it. Matt can you drop me an email please, ta. >> Edited by lucozade on Thursday 25th May 17:58

YHM

[kevgee]

i have the same problem with mine. i need to drive it hard as to stop the constant pssssst which i get on a regular occurance especially on motorways.

[brav]

Sounds like spring is not strong enough