Jump to content
SAU Community

Bov Sound

SargeRX8

By SargeRX8,
in Engines & Forced Induction

 Share

Recommended Posts

SargeRX8 Grand Master

SargeRX8

Posted
Posted

I have NO idea what is causing this sound. I made a thread about it a while ago on my old car about a weird squeel at certain rpm. My new car didn't do it..... Until I swapped off the atmo BOV for the standard nissan BOV the f**king sound came back! Its like a EEEEEEEEEEEEEEEEEEEEEEEEEEEEE sound which will just maintain it self if I can locate the RPM its produced at. So what I mean, if the sound occurs at 2000rpm, the sound will finish as soon as I get to 2100 rpm. but if I hold 2000rpm it will keep going until i let go or go a little faster.

What the hell is it? Is it a failing BOV? Is it a leak?

Link to comment
https://www.sau.com.au/forums/topic/348947-bov-sound/
Share on other sites
Trozzle Grand Master

Trozzle

Posted
Posted

Unlikely to be the BOV. The BOV would only fail at a certain pressure if it were faulty, not an RPM. Because of this, you would be able to replicate the sound at a certain throttle point for any given RPM (not guaranteed).

I'd be thinking check your belts.

Does it make the sound at 2000rpm when the car isn't moving in neutral? If so, pop the bonnet and rev the engine by manually opening the throttle body with your hand. Find the point where it makes the sound, and try to work out where it's coming from.

Link to comment
https://www.sau.com.au/forums/topic/348947-bov-sound/#findComment-5608119
Share on other sites
SargeRX8 Grand Master

SargeRX8

Posted
  • Author
Posted

Only when in gear and only if I hold certain pressure. If I'm rolling down a hill a 2krpm it wont make the sound, but if I pushing up a hill at 2krpm it will make the sound. It is only if there is pressure. If I remove the BOV and fit my atmo BOV back on, the sound is gone. It made exactly the same sound in a completely different car(the exact same BOV).

Link to comment
https://www.sau.com.au/forums/topic/348947-bov-sound/#findComment-5608227
Share on other sites
Luciano Veteran

Luciano

Posted
Posted

^ if blocking it doesnt get rid of the sound, also take a a look at the gaskets and studs around the exhaust manifold and turbo area. I had a couple of broken studs and a chunk of exh manifold gasket missing. Made a real high pitched squeal all the way to redline when on boost. drove me fkn insane...

Link to comment
https://www.sau.com.au/forums/topic/348947-bov-sound/#findComment-5608967
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • PranK
      Chris' Toyota Mark ii JZX110

      By PranK · Posted

      This looks great! Awesome to have the 5 speed with an LSD in this. The Recaro's look like SR2's or SR3's. It's a shame they've been retrimmed as they would have looked sweet in their original colours. I think I'd want my agent to be a little more up front and informative too. I've never imported but I reckon it would make me a little nervous, so the more info the better.
    • soviet_merlin
      Duncan's V37.......race car?

      By soviet_merlin · Posted

      Thanks for doing that Duncan! Makes you a good person in my books. We don't get kangaroos or wombats here. But we have bats and it's similar. AFAIK it's often the mums with a baby attached that get hit because they drop lower when starting from a tree. If you hit an animal, check on it. https://www.ifaw.org/au/resources/wildlife-rescue-app An app to get the closest wildlife rescue contact.
    • Murray_Calavera
      Jacks that fit under GTR lips that can reach the subframe?

      By Murray_Calavera · Posted

      My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Duncan
      Chris' Toyota Mark ii JZX110

      By Duncan · Posted

      Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
×
×
  • Create New...