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MASIVE intake noise in dd

General Tech Talk

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Red_Zook
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MASIVE intake noise in dd

Post by Red_Zook »

i know its not a 4wd
but my pulsar has developed a MASIVE intake noise,
any thing past half throttle..
it is EXTREMLY loud, and looses heeps of power,
but under that drives as normal!!!!
still starts and runs fine!
ANY ideas?
i have taken all intake of to throttle boddy, it is bloody loud and thats where it is comming from.
it isnt using any more fuel. and has about normal power below half throttle..
it is only when under load!!!
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Post by JrZook »

Sounds like you have a vaccum/boost leak somewhere. Check all pipes, hoses and gaskets.
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Post by RAY185 »

I agree if it is turbo charged (doesnt say in your post). If it is then check what JR said, also if you have an adjustable blow off valve check that it hasnt unwound itself making it open under pressure (instead of under vacuum).
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Post by nicbeer »

no splits in the hoses i am guessin.

can u swap the bits from ur other pulsar?
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Post by cloughy »

Fuel filter blocked, pump dying??
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Re: MASIVE intake noise in dd

Post by Gribble »

Red_Zook wrote:i know its not a 4wd
but my pulsar has developed a MASIVE intake noise,
any thing past half throttle..
it is EXTREMLY loud, and looses heeps of power,
but under that drives as normal!!!!
still starts and runs fine!
ANY ideas?
i have taken all intake of to throttle boddy, it is bloody loud and thats where it is comming from.
it isnt using any more fuel. and has about normal power below half throttle..
it is only when under load!!!
Is it an SR20?
\m/
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Post by cloughy »

Timing will do it also
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Red_Zook
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Post by Red_Zook »

it is a standard one.. 1800 single cam NA
nope carnt be vacume as it actualy comes out of the throttle boddy, and idles very nice....
and timing would fuck up and have no power..
it only sceems to be after half throttle..
i would say fuel if it was just dieing.. but its not.. it is just making HUGE noise.. and haveing no power!
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Post by lay80n »

Check your air cleaner/intake tract for blockage.

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Post by cloughy »

Red_Zook wrote:it is a standard one.. 1800 single cam NA
nope carnt be vacume as it actualy comes out of the throttle boddy, and idles very nice....
and timing would ***** up and have no power..
it only sceems to be after half throttle..
i would say fuel if it was just dieing.. but its not.. it is just making HUGE noise.. and haveing no power!
OOOOOkay :? Timing would have no power, fuel will have no power, as layto said air????? or a lack thereof either will have no power?????

I'll just leave you to it shall :?
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Re: MASIVE intake noise in dd

Post by dumbdunce »

Red_Zook wrote: i have taken all intake of to throttle boddy, it is bloody loud and thats where it is comming from.
i
does the noise go away of you put the intake plumbing back on?

is it a 'hiss' noise or a 'bwaaaaaa' noise?
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Red_Zook
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Re: MASIVE intake noise in dd

Post by Red_Zook »

dumbdunce wrote:
Red_Zook wrote: i have taken all intake of to throttle boddy, it is bloody loud and thats where it is comming from.
i
does the noise go away of you put the intake plumbing back on?

is it a 'hiss' noise or a 'bwaaaaaa' noise?
nope... i know about intake nocise.. this is extremly exesive..
no diff it is on or off!
slightly quieter if it is on ovbioulsly since muffles noise....
its as if the valves are holding open......
its near deffening under the bonnet
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Red_Zook
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Post by Red_Zook »

more a low pitch buuurrrhhhh kinda like standard efi reving noise but masivly amplified
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Post by Gribble »

Does it have an egr?
\m/
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Post by JrZook »

Red_Zook wrote:more a low pitch buuurrrhhhh kinda like standard efi reving noise but masivly amplified
So have you lost power?? What about valve timing,has the belt/chain skipped?
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Post by Josh n Kat »

do you have an air filter in there?
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Red_Zook
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Post by Red_Zook »

Gribble wrote:Does it have an egr?
whats that??

do you have an air filter in there?

this is more than a no air filter noise...
So have you lost power?? What about valve timing,has the belt/chain skipped?
nope coz it only happes past half throttle. and it would run like shit
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Post by lay80n »

EGR = Exhaust Gas Recirculation Valve.

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Red_Zook
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Post by Red_Zook »

lay80n wrote:EGR = Exhaust Gas Recirculation Valve.

Layto....
ummm... i dunno......
whats it look like?
i have seriously never herd of that
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Post by Ruffy »

An exhaust restriction will give you all the symptoms you have given. Crimped exhausted? Loose baffles in muffler/resonator.

It will increase induction noise just like a jacobs exhaust brake does on a truck. It will lack power at higher throttle openings because it simply can't shift the air out the exhaust.
Unbolt the flange on the manifold and take it for a quick wrap to see if the power increases back to normal.
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Red_Zook
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Post by Red_Zook »

my mate had an issue like that!
sweet idea will try asap!!!
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Post by lay80n »

It hasn't run rich at all at some time Phil, as a rich mixture will burn out the cat, blocking the honeycomb setcion up.

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Post by Ruffy »

lay80n wrote:It hasn't run rich at all at some time Phil, as a rich mixture will burn out the cat, blocking the honeycomb setcion up.

Layto....
Yep a cat will do it. It may even be cat broken up and blocking resonator or the cat itself.
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Red_Zook
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Post by Red_Zook »

not that i know off.....
have only owned it for like 4 weeks!
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Post by lay80n »

Red_Zook wrote:not that i know off.....
have only owned it for like 4 weeks!
Its like the spanish inquisition :D


Layto....
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Post by cloughy »

Have we fixed this tub of snot yet?? :D
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Red_Zook
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Post by Red_Zook »

nope been to bizzy drinkin, dreamin, and dragin (waching)
off to sydney this week so will look when get a chance.. i live in the center of hobart so raealy dont use car much at all
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