Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
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Why does it do this and how can I fix it?
Basically, my car has a sebring exhaust system and it is very raspy when you first turn on the car and drive about... a sorta bee in a tin noise when you boot it (really horrible rasp noise) ... what causes this?
After about 5-10 mins of driving the noise totally disapears (heats up exhaust?) ... why does the raspy noise completely stop?
Anyone know how I can get it to not have the noise at all? I also get a lot of bubbling / slight pop noises on the overrun (if I lift off the gas) ... why does this happen and how can I stop it also?
Cheers...
Paul J
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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i get alot of the same on mine, sounds crap when car is cold 
i reckon it due to very small gaps that seal when zaust expands
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Matt H
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Registered: 11th Sep 01
Location: South Yorkshire
User status: Offline
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quote:
Originally posted by 3CorsaMeal
i get alot of the same on mine, sounds crap when car is cold
i reckon it due to very small gaps that seal when zaust expands
yep^
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Paul_J
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Registered: 6th Jun 02
Location: London
User status: Offline
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small gaps where? in my exhaust? or where center section is joined?
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Graham
Member
Registered: 12th Oct 03
Location: Lincoln.
User status: Offline
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mine gets louder and more burbly when the exhaust is hot, but i like it when it does that 
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Houckham
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Registered: 29th May 03
Location: Newcastle upon Tyne
User status: Offline
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mee too i got sebring sounds mmmmm when gets hot!
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Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
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could the fact it's off its hangers in the center possibly cause extra rasp then? i.e. causing a bit of a gap / not a 100% tight fit since it'll be hanging slightly more in the middle...?
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Graham
Member
Registered: 12th Oct 03
Location: Lincoln.
User status: Offline
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if its off its hangers chances are is bent the joint on where it joins to the centre pipe causing it to exit there thus causing a rasp.
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Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
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interesting... 
Thing is - when I got it fitted, I lost those vaux clips that hold the exhaust on its hanger - so I never clipped it on and it's just gradually fallen off (too many speed humps) - not sure whether rubbers are still on there...
how much is it for those exhaust hanger clips? coz I might go get some - then drive to my mates (he's not even into cars, but his garage came with a pit so you can get under the car )
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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get the system re set so all the seals are good then see if it still rasps
as for the burbling and poping on lift off only way to clear that would be to put a std system on.
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corsa_godfather
Member
Registered: 6th May 03
Location: Greenock,Scotland
User status: Offline
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it pops and burbles when its cold due to the E.G.R valve.when my cars cold if i rev it to 3k and let it drop it backfires.i have no cat though
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Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
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burbling and pops arn't really annoying - its just the loud raspy tinny noise I get sometimes when its cold that annoys me - but now I understand why... I can go about sorting it.
Probably putting it back on the hangers will help as I've never had this system on the hangers properly.
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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also check the joins and put firegum round them to make sure it seals.
to see if its blowing when cold get a old rag/towel and start the car get somone to hold the rag over the tail pipe tight and listen for leaks
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ed
Member
Registered: 10th Sep 03
User status: Offline
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Take it to ATS in Beaconsfield mate, they fitted my system for free... 
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Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
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why free?
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