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annoying rattle 

 

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 Post subject: annoying rattle
Posted: Sun Jul 09, 2006 3:15 pm 
Getting Side Ways
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Lately there has been a very annoying and loud rattle coming from underneath my car, i thought it was the cat convertor, so i pulled it out today and gutted it, re installed it with new gaskets, and the rattle is still there. I have no idea what it is, but it sounds like a metal/metal rub, very tinny sound. It only happens on idle, and up to about 1500rpm, then it goes away, and it only seems to occur when the motor is warmed up, doesnt happen cold...?

anyone have any ideas, im hoping its not a bottom end rattle.

oh I also have a rather large exhaust leak somewhere if that has anything to do with it? maybe one of the mufflers has collapsed, im not sure.

 

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Posted: Sun Jul 09, 2006 3:26 pm 
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Hey mcgaf take the exhaust off and see if it is still there might be tapping on something!
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Posted: Sun Jul 09, 2006 3:52 pm 
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IS YOURcar auto? if it is it might be the tork converter has come loose .take off the inspecion cover off and see if it is loose
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Posted: Sun Jul 09, 2006 6:14 pm 
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took the exhaust off earlier (sounds horn as :twisted: ) might take the inspection cover off next weekend and see if its the convertor. Any other ideas? As i changed over the tranny and convertor bout 2 months ago, and the rattle was there b4, and after the tranny swap.

mind you, the rattle wast there when the exhaust was off. Is it possible for mufflers to collapse?

 

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Posted: Sun Jul 09, 2006 6:18 pm 
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yeah it is man, are they stock? the baffles can come loose

 

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Posted: Sun Jul 09, 2006 6:22 pm 
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centre muffler is a lukey straight thru (ultra flow or some b/s) and the rear one, have no idea, might be stock. Im praying its not a bottom end bearing rattle or im up s**t creek!

 

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Posted: Sun Jul 09, 2006 6:26 pm 
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yeah id be dreading that too !
could just be a baffle in the rear muffler, or an exhaust hanger f**k up, and the exhaust hitting the diff or floor or something?
if you can try pinpoint exactly where its coming from, narrow it down at least

 

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Posted: Sun Jul 09, 2006 6:59 pm 
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well i've been at my uncles place since 2pm and needless to say im quite p****d so might have to try and pin point during the week after work :wink:

 

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Posted: Sun Jul 09, 2006 7:00 pm 
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my was making that exact noise and is was a shagged out muffler

 

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Posted: Sun Jul 09, 2006 7:19 pm 
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hmm, a redback 2.5" may fix that and replace the old 2.5" press bent system... nice

im also thinking it has to be exhaust because along with the rattleing there is a mammoth exhaust leak. and they both started around the same time

 

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Posted: Sun Jul 09, 2006 7:52 pm 
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Yeah, I'd be saying exhaust as well.
Not the bottom end... please not the bottom end :P

 

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Posted: Mon Jul 10, 2006 6:37 pm 
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Steady ED wrote:
Not the bottom end... please not the bottom end


my thoughts exactly! Im f**k if it is!

It shouldnt be... i mean i give it a hard time, but not 24/7, and its always got good oil, good filter, and coolant.

 

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Posted: Tue Jul 11, 2006 12:36 pm 
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mrnasty wrote:
hmm, a redback 2.5" may fix that and replace the old 2.5" press bent system... nice


he he, thats how i fixed mine :lol:

 

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Posted: Tue Jul 11, 2006 4:27 pm 
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the rattle ... is the heatshield on the catalytic converter ... had it on mine ... had the heatshield removed ... bingo ... no rattle.

 

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Posted: Tue Jul 11, 2006 6:27 pm 
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where abouts is the heat sheild on the cat??

 

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