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Author Topic: Strange noise  (Read 944 times)

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bighed

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Strange noise
« on: 31 March 2008, 01:48:49 »
On starting from cold there is a hollow rattling coming from under car.  :-?Have had a quick look under and it seems to be coming from the 2 boxes on the exhaust (cats I think??) any ideas??  It lasts for about 30 secs but its quite loud!!

Thanks  :y
« Last Edit: 31 March 2008, 01:50:17 by bighed »
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Matchless

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Re: Strange noise
« Reply #1 on: 31 March 2008, 09:58:31 »
Usual source of rattles is the tin heat shields around the exhaust downpipes, they tend to rust away around the welds. If loose try putting a jubilee hose clip on to hold them in place.
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bighed

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Re: Strange noise
« Reply #2 on: 31 March 2008, 21:15:59 »
Its coming from rear end of car by what I think are the cats.  :y
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Matchless

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Re: Strange noise
« Reply #3 on: 01 April 2008, 13:37:00 »
The cats are the first boxes after the engine, if the noise is from the next pair of boxes then its probable that the internal baffles have rotted and are loose. Time for another exhaust.
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bighed

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Re: Strange noise
« Reply #4 on: 01 April 2008, 21:06:38 »
Its not doing it any more. Not heard it at all today.  :-?
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RolandL

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Re: Strange noise
« Reply #5 on: 01 April 2008, 21:09:23 »
Quote
Its not doing it any more. Not heard it at all today.  :-?


If the baffles have gone you may see some "hair" coming from exhaust, if you do get it changed sharpish    :y
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The faster you go the bigger the grin.  Trade card user.

bighed

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Re: Strange noise
« Reply #6 on: 01 April 2008, 21:15:11 »
No hair. might of been something else. She is going on ramps sat so will have a thorough look then.  :y
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