Thread: Tumbling Rocks

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  1. #1 Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    There's a noise coming from under my hood that sounds like something between tumbling rocks & fluttering newspaper. I would assume it's bad S/C bearing but idk for sure. Anyone know what it might be?


    Just when you think you've got all your problems fixed new ones arrive to keep you busy.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  2. #2 Re: Tumbling Rocks 
    Donating Users silverstreak's Avatar
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    coupler is bad, take off the s/c belt and start the car. If the noise is gone, you need a new coupler

    here> http://www.zzperformance.com/grand_p...=155&catid=106
    Last edited by silverstreak; 02-11-2010 at 06:46 PM. Reason: ad link
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  3. #3 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    Alright I can do than. Lucky I have an extra nose drive I can use. But, if it is the S/C wouldn't I get that noise all the time & not just when the car is moving?
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  4. #4 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    I took the belt off & I still get the noise.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  5. #5 Re: Tumbling Rocks 
    ROLLS ARE FOR BAKERS... whiney's Avatar
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    Can you get a video of it?
    2000 2dr. black GTP|Headers|3.1"|xp'ed|ported s/c|HPT & aem wb|3.29's built trans|19° timing|0°KR
    Turbo/heads /big cam build starts soon!!!
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  6. #6 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    No, but i'm wondering if i don't have something loose.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  7. #7 Re: Tumbling Rocks 
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    valvetrain issue possiblly?
    03 GTP - 13.8 @ 100 2.160ft
    99 GTP - DD
    *Operation Iraqi Freedom/Operation New Dawn Veteran*
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  8. #8 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    Oooh I hope not.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  9. #9 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    I'll try & get a video put up tomorrow.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  10. #10 Re: Tumbling Rocks 
    resident snitch gtpinsc's Avatar
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    flex plate? and u posted in N/A section BTW

    02 GTP with mods 05 GP for DD
    Quote Originally Posted by SuperSport View Post
    The majority of the people here are potheads who want to buy good condition parts at junkyard prices.
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  11. #11 Re: Tumbling Rocks 
    GTX Level Member imdaman3's Avatar
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    torq convertor bolts came loose??
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  12. #12 Re: Tumbling Rocks 
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    I'm wondering if it's the tranny. It's been shifting funny.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  13. #13 Re: Tumbling Rocks 
    GTX Level Member imdaman3's Avatar
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    get under there and tighten the torq converter bolts see if that fixes the problem
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  14. #14 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    If it were any of those problems I would here the noise @ idle & I don't. It is something loose >_< I just don't know what. Unless. . . a bad strut can cause weird noises like that.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  15. #15 Re: Tumbling Rocks 
    ROLLS ARE FOR BAKERS... whiney's Avatar
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    Can you find out the general area the sound is coming from?
    2000 2dr. black GTP|Headers|3.1"|xp'ed|ported s/c|HPT & aem wb|3.29's built trans|19° timing|0°KR
    Turbo/heads /big cam build starts soon!!!
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  16. #16 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    Sounds like its coming from right under the hood close to the firewall.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  17. #17 Re: Tumbling Rocks 
    ROLLS ARE FOR BAKERS... whiney's Avatar
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    trans, downpipe???
    2000 2dr. black GTP|Headers|3.1"|xp'ed|ported s/c|HPT & aem wb|3.29's built trans|19° timing|0°KR
    Turbo/heads /big cam build starts soon!!!
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  18. #18 Re: Tumbling Rocks 
    GrandPrix Junkie SDGTP99's Avatar
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    Im wondering about the transmission =/
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  19. #19 Re: Tumbling Rocks 
    GTX Level Member imdaman3's Avatar
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    i had a caddy come into my shop and only under a load would it make this weird a$$ sound i guess like tumbleing rocks coudnt tell were it was coming from i put it on the rack and stuck my ear up to it after i had it under a load (sum1 power braking it) was comeing from bottom of the trans pulled starter and plastic cover torq convertor bolts were loose as hell took um out lock tighted umm havent seen car since that was over 2 yrs ago,, mite not be your problem just a thought dont hurt to check.
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  20. #20 Re: Tumbling Rocks 
    resident snitch gtpinsc's Avatar
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    im puttin my money on broken flex plate.

    02 GTP with mods 05 GP for DD
    Quote Originally Posted by SuperSport View Post
    The majority of the people here are potheads who want to buy good condition parts at junkyard prices.
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