Thread: please help me diagnose this noise *videos*

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  1. #1 please help me diagnose this noise *videos* 
    GT Level Member jdmgtp's Avatar
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    When I jab the throttle in park it vibrates terribly and sounds like somethings grinding, also most like a shot bearing somethings out of balance and now it makes a rattling sound at idle . It sounds like it's coming from the trans. I'm pretty sure it's either the flexplate or converter. The car drives completely normal....... no slippage or hard shifting. I hope/ pretty sure it's not my engine.

    Sorry about the quality, it's the only camera I have.


    http://www.youtube.com/watch?v=oDtG7I3Zo50

    http://www.youtube.com/watch?v=7kbfE0SI548
    2000 GTP, 3.2 pulley, SD headers, 3" exhaust, modded 1.9's, custom CAI, LS6 maf, ported blower/ TB, HPT, 65 lb injectors, E85 in the summer, LM-1 wideband, 180 stat, autolite 104's, GMHD suspension kit. 13.2@104 on street tires w/o ported s/c
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  2. #2 Re: please help me diagnose this noise *videos* 
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    From my recent install of my trans it looks like that may be the flywheel. When you rev it does it get worse?
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  3. #3 Re: please help me diagnose this noise *videos* 
    GT Level Member torq455's Avatar
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    sound like a bearing to me. i had that same sound in a 3.3. it spun a bearing.
    2002 GTP: K&N, 3.2 pulley, flipped mounts. ZZP SS headers, 180 stat, NGK TR6's, MSD wires, Reptile ported TB, ported S/C, ported LIM, Intense Stage II heads with larger Manley severe duty SS valves, Yella Terra 1.9 full roller rockers, LS6 springs, Racetronix fuel pump re-wire, Oil pressure "kit", JMB FWI. Mustang dynoed at 240 WHP, 272 WTQ.
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  4. #4 Re: please help me diagnose this noise *videos* 
    GT Level Member jdmgtp's Avatar
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    it was the flexplate.
    2000 GTP, 3.2 pulley, SD headers, 3" exhaust, modded 1.9's, custom CAI, LS6 maf, ported blower/ TB, HPT, 65 lb injectors, E85 in the summer, LM-1 wideband, 180 stat, autolite 104's, GMHD suspension kit. 13.2@104 on street tires w/o ported s/c
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