rattling noise, any ideas? - Mustang Evolution

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Old 05-01-2013, 12:42 PM   #1
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rattling noise, any ideas?

So I recently bought a 98 gt and it makes a bit of a rattle noise somewhere between the engine and cat on the driver side, it's not piston slap I know that much. It only does it at idle after it's been sitting, if I go for a short drive the noise goes away. I checked the exhaust and nothing is loose
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Old 05-01-2013, 12:55 PM   #2
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Check again by the cat and the h pipe on my o/r x my coupler flange was missing a bolt. If anything it could be a heat shield loose or time to change out the cats if the catalyst in it has broken or been unclogged or atleast attempted to be unclogged out
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1996 Mustang GT, 17x9 front and 17x10.5 cobra r replica rims, 255/40/17 front 285/40/17 rear at the moment,
o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.
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Old 05-01-2013, 01:19 PM   #3
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I'll check it out again and see, I suppose it could be a bad catalyst. The car has 160k miles and the seller said it still had stock exhaust
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