Thread: Rattling noise when hitting bumps?

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  1. #1 Rattling noise when hitting bumps? 
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    Ive noticed a rattling type noise in the rear driver side corner in my gp, its a coupe if it makes any difference lol. It almost sounds like the seatbelt hitting or something rattling inside the wall, any other ideas of what it could be or how to solve the issue?
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  2. #2 Re: Rattling noise when hitting bumps? 
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    I'd challenge you to check the brake caliper floating pins/bolts first for security. I had worked one loose somewhere along the way and it fell out. The sound you're describing was reminiscent of my caliper flapping around a little bit.

    Colleen
    : CAI, HV3, 2.5" d/p w/h/f cat. Full suspension, PowerSlots w/Hawk HPS, GR2s, Sonar projectors. Needs tune. Awaiting install of FBod brakes.
    Shianne: 98 L36 MM5. Good start to a LONG project.
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  3. #3 Re: Rattling noise when hitting bumps? 
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    alright thanks, could it possibly be a ball joint?
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  4. #4 Re: Rattling noise when hitting bumps? 
    Moderator dsmuts's Avatar
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    There is no ball joint in the rear of your car.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  5. #5 Re: Rattling noise when hitting bumps? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Sway link?

    SMGPFC Member #1
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  6. #6 Re: Rattling noise when hitting bumps? 
    Gun nut and III percenter TexasTanker19kilo20's Avatar
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    It's normal GP noise, just turn up the radio and worry once something falls off.




    Something simple most likely, just have to jack it up and recheck tightness of things.
    Goldie 98 Topaz Gold GTP (retired)/ Shadow 06 GTO 6.0 Phantom Black Metallic- traded in. Now cruising a 2005 GMC Sierra 2500 HD 4x4 with the always fun 6.0L
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  7. #7 Re: Rattling noise when hitting bumps? 
    GrandPrix Junkie
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    Could be a rear strut mount as well. I know mine clunk sometimes if I hit a bump/pothole just right. As tanker said its time to throw it on a jack and jackstands and take a look for anything loose, or that shows signs of movement where there shouldn't be (shiny metal on a painted/coated surface, etc..).
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  8. #8 Re: Rattling noise when hitting bumps? 
    GXP Level Member coolone's Avatar
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    Could be any of the aforementioned items or something totally unexpected.
    You've got to get under there and take a look see. Get you hands on things and see what's loose.

    Not mentioned but I'd check you exhaust system hangers as well... : )
    Overkill BBC Cam, YT 1.8 RR's, Rhodes Lifters, STGII Heads, GenV, Pacesetters, 3" Exh to Tips, TEP Trans. N*, ID 75# injectors/E85 coming soon
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  9. #9 Re: Rattling noise when hitting bumps? 
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    alright
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