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  #1  
Unread 2nd October 2015, 08:20 AM
teki1975 teki1975 is offline
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Default Subaru L series Mystery noise ?

I have a Subaru L series that is making a hell of a rattle. It started about three weeks ago and sounds like a rock or nut is banging around on tin metal.

I removed the basher plate today to see if anything was banging around on that but that was a negative.

I am pretty sure it is not the engine as it does not seem to be coming from there.

I was thinking exhaust but that also was a negative.

The only other thing I can think of is the clutch or gearbox ?

Anyone else had this problem before any help would be much appreciated.
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  #2  
Unread 2nd October 2015, 12:04 PM
AndrewT AndrewT is offline
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Need some details on when it does it, and ideally post a vid or audio recording of it.
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  #3  
Unread 2nd October 2015, 07:10 PM
teki1975 teki1975 is offline
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Thanks AndrewT, I will try and get the recording done today. My main concern if something has come loose in the clutch/gearbox.
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  #4  
Unread 27th October 2015, 08:31 AM
teki1975 teki1975 is offline
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Okay here is a video on you tube that I did that shows the rattle I am trying to diagnose the link is https://youtu.be/rZOAa164Nsw The sound does not start straight away about 1:24 you start to hear the rattling sound.
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  #5  
Unread 27th October 2015, 10:43 PM
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Beigewagon Beigewagon is offline
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Hi Teki,

To me that sounds more like an exhaust rattle. Either a loose heat shield, or something caught inside one. Or possibly the internals of the 'Y' peice / catalytic converter loose and falling apart.

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  #6  
Unread 27th October 2015, 11:54 PM
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I agree with BW.

Sounds like the noise that Roo1 made when its entire rear tail pipe and mufflers were cactus! The seam weld along the top of the rear tail pipe had been eaten through and split lengthwise in places. The rattles it had were also coming from the loose plates/shagged muffler/resonator.

These sorts of rattles can also come from heat shields and pipes, as BW said. Roo2 developed a very bad case of this when I fitted the SubaXtreme sump guard ...
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  #7  
Unread 28th October 2015, 12:14 AM
teki1975 teki1975 is offline
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Thanks guys much appreciated.

I will now try and undo the heat shields but by the look of the bolts I am going to have to cut them off.
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Unread 28th October 2015, 01:06 AM
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Hey Teki

Check for exhaust leakage (carefully!) with the engine running and car stopped, BEFORE cutting anything. You may be able to hear or feel the exhaust gases leaking if you grovel underneath.

No point in subjecting yourself to pain and suffering if the whole rear pipe needs replacing! I eventually put a new OEM rear pipe on Roo1. Should have done this when it first started to sound like a truck. One lives, and one learns ... .
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  #9  
Unread 28th October 2015, 06:58 AM
teki1975 teki1975 is offline
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I have checked the exhaust I do need a new Flange gasket after the Catalytic converter but this has always been like that so doubtful that this is making the noise. I have a complete other front exhaust section as a spare so I will change replace the one on the car for the one I have spare less work than taking the heat shields off the one on the car. I am crossing my fingers that this is the source if not back to the drawing board again. Thanks everyone for you help.
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  #10  
Unread 29th October 2015, 12:53 AM
teki1975 teki1975 is offline
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Well I took all the heat shield/Protectors off the front of the exhaust and no more noise. So I just want to say a huge thankyou. It has saved me a lot of worry and money. Thanks Guys I owe you one.
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