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05-03-2009, 11:01 PM
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FF.Com.Au Hardcore
Join Date: Sep 2007
Posts: 717
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I've noticed a 'whooshing' sound that appears to come from the cat when I accelerate. Is that normal? It is a magnaflow cat. I just had headers fitted so there shouldn't be any leaks, plus it did it before but I really didn't take any notice.
Are there any vacuum hoses on the drivers side that may have come loose that would make the sound I'm describing under throttle? Cheers. |
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06-03-2009, 12:02 AM
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FF.Com.Au Hardcore
Join Date: Feb 2007
Location: ...in the shed
Posts: 3,386
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i think you might have Whoosha trapped in your cat
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08-04-2009, 07:28 AM
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Starter Motor
Join Date: Apr 2009
Location: Gold Coast
Posts: 13
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My '00 AU Ghia which has extractors and a 3 inch system makes a similar noise when I initially apply more than gentle pedal though I haven't yet been able to pinpoint the source except that it seems to come from under the front of the car. I have checked under bonnet plumbing. Any clues greatly appreciated. Ray.
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08-04-2009, 03:11 PM
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Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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Quote:
Hope you both work out what the noise is. Probably more noise (less restriction) from your freer flowing exhaust. GK
__________________
2009 Mondeo Zetec TDCi - Moondust Silver 2015 Kia Sorento Platinum - Snow White Pearl 2001 Ducati Monster 900Sie - Red Now gone! 1999 AU1 Futura Wagon - Sparkling Burgundy On LPG Want a Full Life? John 10:10 |
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08-04-2009, 03:19 PM
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Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Quote:
 Oh my. Is it the standard cat or an aftermarket item?
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Quote:
07 Renault Sport Megane F1 Team R26 #1397
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08-04-2009, 03:23 PM
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FF.Com.Au Hardcore
Join Date: Sep 2007
Posts: 717
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Aftermarket magnaflow.
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08-04-2009, 03:46 PM
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#7 | ||||
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AU DIE HARD
  
Join Date: Nov 2005
Location: Between 2nd and 5th gear
Posts: 5,073
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Quote:
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........Age and treachery will ALWAYS overcome youth and skill....... CORTINA 250 2V POWER soon to be AUXR8 Windsor pwrd .............WINDSOR WARLORD WHO CARRIES THE CLEVO MAFIA AND BROKEN BOSSES... .........................  .........................Quote:
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09-04-2009, 12:33 AM
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FF.Com.Au Hardcore
Join Date: Dec 2008
Posts: 1,566
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well i developed the same noise the day after i got my high flo cat installed... it sounds yuck but i think its a leak as it wasnt like that when i left the shop
__________________
Current Blueprint 03 xr8  5 speed manual, Difilippo Quad Big Boy system, BPR CAI, BPR Custom tune, Underdrives 256rwkw   BA manual Typhoon Fully optioned, 340rwkw@16psi (thanks Bluepower)! The old ride.... AU Fairmont, cammed beast, R.I.P you made my p plate years bearable! 150.8rwkw courtesy BPR |
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09-04-2009, 06:52 PM
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FF.Com.Au Hardcore
Join Date: Jan 2005
Location: ACT
Posts: 11,647
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Quote:
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10-04-2009, 02:09 PM
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FF.Com.Au Hardcore
Join Date: Dec 2008
Posts: 1,566
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ok... well apparently its my 'idle bearings' i was told at the exhaust place. we got under the car on the hoist with it on and i can 100% say that its not the exhaust making the noise, they thougt it might be the fuel pump or the bearings but after they heard the noise coming frm under the bonnet they seem to be sure its the idle bearings
__________________
Current Blueprint 03 xr8 5 speed manual, Difilippo Quad Big Boy system, BPR CAI, BPR Custom tune, Underdrives 256rwkw BA manual Typhoon Fully optioned, 340rwkw@16psi (thanks Bluepower)! The old ride.... AU Fairmont, cammed beast, R.I.P you made my p plate years bearable! 150.8rwkw courtesy BPR |
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'Whooshing' noise from cat
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