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Exhaust slapping sound 


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 Post subject: Exhaust slapping sound
Posted: Mon Mar 15, 2010 2:08 pm 
Stock as a Rock

Age: 32

Posts: 129

Joined: 22nd Jan 2005

Gallery: 6 images

Ride: BA XT 6

Location: Canberra
ACT, Australia

I've had my exhaust for a couple of years now and ever since it was installed, I've noticed this slapping sound that becomes apparent when I accelerate quickly from a stand still or low speeds. The slapping doesn't happen throughout the rev range, roughly between 2200 - 3500rpm but only if I try and go through that range quickly.

If I gently accelerate through those revs, the slapping sound isnt there, but

Just wondering if this should be of any concern or its just how it is for my exhaust?
Its got 4490's / 2.5" hi-flow cat / redback muffler / resonator.
 Post subject: Re: Exhaust slapping sound
Posted: Tue Mar 16, 2010 10:13 pm 
Fordmods Newbie

Age: 27

Posts: 2

Joined: 7th Mar 2010

Gallery: 2 images

Ride: Ford Falcon BA XR6 04

Location: Sydney
NSW, Australia

where is the sound Back or front, take it to a mechanic and put in on a hoist (wait for the exhaust to cool down and grab it, Give it a good shake, look for anywhere it could be hitting, also check it hasnt come off the rubbers that hold it in place, if thats not the problem then id get some extra support bars added to hold it still, prob only cost $50
 Post subject: Re: Exhaust slapping sound
Posted: Tue Mar 16, 2010 10:24 pm 
Smokin em up
User avatar

Age: 30

Posts: 251

Joined: 9th Sep 2009

Ride: ED falcon gli - XR6 replica

Location: Canberra
ACT, Australia

did a wheel alignment on a vx ss a couple of months back and i saw that one of the rear mufflers was close to the tailshaft and showed large signs it had been fouling on the tailshaft while moving, i pointed it out to the owner and he said it was impossible because he fitted the exhuast himself.......
Basically one to the welded hangers was bent from outta the box for his off the shelf exhaust and it was pulling the drivers side pipe into the middle of the car. so just check you cant bend afew hangers to get it sitting sweet.



Ford ED Falcon Gli, T5 conv, Twinlight lights, exedy sports tuff clutch, modified EA front grill, ED XR6 complete interior, 19" speedy graphites, monroe gt shocks, kingspring superlows, CAI, ported tickford head, 3:45 LSD.
Soon: paccies, custom centre console

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