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Author Subject: Exhaust rattle - Not a Pug.
ian7675

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Location: Gloucestershire

Registered: 12 Oct 2007

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Post #1
I'm having an issue on my CTR and I'm not getting much joy on some of the forums as they seem as quiet as this one so I'm going to throw this out just in case anybody here has any ideas:


quote:

i have an issue with my EP3 that is really bugging me. I bought it about 5 weeks ago and it had a decat pipe fitted but with the original cat supplied. So a week later I had the cat re fitted and all was ok for a few days. Then there appeared a rattling noise which occurs at low revs, about 2k to 3k (ish) and generally when the engine is under load. Once I'm out of that rev range the noise goes and all is well.

now I know what you might be thinking, it must be the drive shaft heat shield or maybe the cat heatshield which is what I was thinking. So today I had the car up on stands and then removed them and whilst I was under there I gave the cat a bit of a bang with the back of my hand and there was no rattling or knocking coming from inside it so I thought all was well. I lowered the car and took it out for a spin and the noise was gone. After a 10 minute drive I came home and went out again about half hour later and low and behold the noise is back again.

Im now getting really annoyed at what it could be as I also took the manifold plastic cover off just in case it was that but it wasn't. The rattling is at its worst if I try accelerating in too high a gear so when the engine is trying to use all of its torque if that makes any sense. Does anyone have any ideas on this please as it's driving me up the wall as to why it would come and go like that?



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Posted 29th Sep 2013 at 18:57
jimmyrallye

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Location: portsmouth

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Post #2
Have you tried the engine cover the silver one as that works it self loose

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Posted 29th Sep 2013 at 19:09
ian7675

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Post #3
Yeah, that's the one I mentioned above which goes on the manifold? That's in the boot now so it's definitely not that.

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Posted 29th Sep 2013 at 19:12
jimmyrallye

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Post #4
Sure it's not a rattle in your cat ? As mine use to rattle with a b-pipe fitted

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Posted 29th Sep 2013 at 19:18
ian7675

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Registered: 12 Oct 2007

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Post #5
Well I gave it a smack and it didn't make any rattling sound but could it still be this? I hope not as they're not cheap unless I try a used one.

Edit: Honda parts say a new cat is £2200, surely that's a typo LOL

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Posted 29th Sep 2013 at 19:42
jimmyrallye

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Post #6
Sold mine for £65 posted when i sold my ep3 couldn't give it away at the time

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"Police arrested two kids yesterday, one was drinking battery acid, the other was eating fireworks. They charged one and let the other one off."
Posted 29th Sep 2013 at 20:10
ian7675

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Post #7
eBay have a few at about £120 but I've sent out a request on one of those breakers yard sites so ill see what they come back with. If I get one and it doesn't sort the rattle then it's going LOL

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Posted 29th Sep 2013 at 20:18
bennn

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Location: Shrewsbury

Registered: 05 Sep 2008

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Post #8
I had this on my EP3, was the heatsheild around the cat, but it should have been pretty obvious when you had it in the air, put a massive jubilee clip round it and problem solved.

I'd take it somewhere and get it looked at rather than spunking cash on parts which may / may not fix it.

I loved my CTR so seems a shame to get rid over a rattle!

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Posted 30th Sep 2013 at 13:04
ian7675

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Location: Gloucestershire

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Post #9
The heat shield has already been removed now mate. I just found out that its actually illegal to sell used cats. I'm guessing that applies only to registered companies as I can't find anywhere except eBay that has used ones.

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Posted 30th Sep 2013 at 14:38
bennn

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Post #10
ian7675 wrote:
The heat shield has already been removed now mate. I just found out that its actually illegal to sell used cats. I'm guessing that applies only to registered companies as I can't find anywhere except eBay that has used ones.


Really, wonder why that is?

I wouldn't hesitate to buy a used OE one over a new non genuine one mind, there usually plenty being on broken on eBay/CTRO

I still reckon half an hour of a specialists time is money better spent than replacing everything you think it could be.

Is it just when you driving it or does it rattle when stationary as well?



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Posted 30th Sep 2013 at 15:42
ian7675

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Post #11
No, just when driving at low revs. I guess you're right, I should take it somewhere first.

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Posted 30th Sep 2013 at 15:57
bennn

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Post #12
ian7675 wrote:
No, just when driving at low revs. I guess you're right, I should take it somewhere first.


It if its not doing it when you rev it stationary I'd say chances are it isn't exhaust related.

You sure its not the gearbox? Mine was slightly noisy at 2-3k most noticable if you put your foot down flat at 2k in 6th. From what I've heard / read on the owners forum its not uncommon and the boxes are slightly noisy, and aside from the noise (which wasn't too bad to be honest) I never had any problems with it.

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Posted 30th Sep 2013 at 17:01
rallye1999

Senior User

Location: redcar

Registered: 05 Jul 2009

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Post #13
I had a rattle on our fiesta st for about a year, tried everything I could think of , in the end it was a seized/creaking aux belt tensioner
Posted 5th Oct 2013 at 11:01
jord294

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Location: somewhere in north wales

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Post #14
All ctrs seem to do it. Even mine. But only under slight load, when turning up a steep hill near my home

Doesn't bother me

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Posted 5th Oct 2013 at 12:56
ian7675

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Location: Gloucestershire

Registered: 12 Oct 2007

Posts: 6,068

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Post #15
Well it's been to the garage and also to ATS. The garage seem to think its the cat going but ATS had a good look over it and couldn't find anything loose at all and even gave the cat a good knock and nothing. I just can't understand what it could be Sad

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Posted 5th Oct 2013 at 20:54
bigbadbowen

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Location: Winchester

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Post #16
Take the cat off put the decat on job done ? If it still rattles it's something else ?
Posted 5th Oct 2013 at 21:04
ian7675

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Location: Gloucestershire

Registered: 12 Oct 2007

Posts: 6,068

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Post #17
I don't have the decat any more so I'm thinking of just getting a used cat to replace the existing one. If that doesn't solve it then I'm selling it as I hate rattles.

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Posted 5th Oct 2013 at 21:52
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

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Post #18
Without seeing the car and just going on what you're saying, it sounds like a typical knackered CAT symptom. Sad

But as I say, this is only going on your description.

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Posted 6th Oct 2013 at 16:59
ian7675

Techno Viking

Location: Gloucestershire

Registered: 12 Oct 2007

Posts: 6,068

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Post #19
stan_306gti6 wrote:
Without seeing the car and just going on what you're saying, it sounds like a typical knackered CAT symptom. Sad

But as I say, this is only going on your description.


It's what I'm thinking too Stan, I'm confident it's exhaust related as its that sort of hollow tinny type sound. I've now ordered a replacement off ebay.

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Posted 6th Oct 2013 at 22:35
bennn

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Location: Shrewsbury

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Post #20
Surely the fact it doesn't make the noise when revving stationary rules out the CAT / exhaust?

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Posted 18th Oct 2013 at 10:08
ian7675

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Location: Gloucestershire

Registered: 12 Oct 2007

Posts: 6,068

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Post #21
It does it on start up.

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Posted 18th Oct 2013 at 22:12
bennn

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Location: Shrewsbury

Registered: 05 Sep 2008

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Post #22
Strange. Let us know how you get on!

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Posted 19th Oct 2013 at 11:11
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

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Post #23
Any update on this Ian? Dunno

I ask this now as my life won't be the same if I don't know the answer to this conundrum and your membership runs out, therefore we'll never know. LOL

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 21st Oct 2013 at 12:26
ian7675

Techno Viking

Location: Gloucestershire

Registered: 12 Oct 2007

Posts: 6,068

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Post #24
Well I'd hate to keep you in suspense Stan so...

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Posted 23rd Oct 2013 at 22:22
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

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Post #25
And the answer is? Dunno LOL

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Peugeot 306 GTi-6
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Posted 24th Oct 2013 at 05:51

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