2k+ trunk rattle. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-07-2006, 09:52 PM   #1
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Default 2k+ trunk rattle.

Anyone know what the common problem areas are on the 2k+ Bonneville models and trunk rattle? My trunk lid/spoiler don't rattle, it seems to come from below the car more than anything but I can't really tell what it is.. Here'* a sound clip so you can hear just how LOUD the rattle is. This is only from a basslink too.... the woofer is 8" on the Basslink. The volume was set on about 3/4 volume and bass was set on 0 (from a range of -6 to 6.) the Microphone was placed outside the car about 1 foot away from the rear of the car.

I have to give a PG 13 rating for one swear word in the video that you can hear outside the car. You can hear the rattle get really loud about 30 seconds into the song BTW. I just picked that song because it was the most bass-heavy song I had on a mixed cd that was already in my car at the time.
http://media.putfile.com/outsidestereo
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Old 03-07-2006, 10:04 PM   #2
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That BZZBZZZBZZ sounds like the trunk lid torsion bars up underneeth the rear deck?
Wrap a towel around them and retest.
Does it vibrate with the trunk lid open?
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Old 03-07-2006, 10:27 PM   #3
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the main problems that i had with mine was the rear trunk lid cover, rear deck where 6x9'* are and the back seat arm rest hole in to the trunk I used some dynamat on the first two(alot of dynamat seemed to quite it down a bit) the arm rest hole I haven't been able to fix so i just leave it open
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Old 03-07-2006, 10:40 PM   #4
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mine is as tight as a virgin with 2 12s at 460w RMS
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Old 03-07-2006, 10:47 PM   #5
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I should also mention that there are zero rattles that can be heard from inside the car. It sounds good inside, it'* just outside that you hear all the rattling.
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Old 03-14-2006, 10:38 PM   #6
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i agree that sounds like the metal rods rattling. but have you pressed o the trunk lid to see if it stops? i would dynamate the lid and the rods and see if it fixs the issue. i would say that it should do it as the dyamate will keep the rods from rattling together but not stop them from working or be ugly... towel=ugly...should use minimal amount of material to do the rods as well so what is there to loose!!
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Old 03-14-2006, 10:54 PM   #7
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I noticed you have a rear spoiler. That could also add some vibration. Not sure how to exactly fix that but I have heard of people placing dampening rubber things on them once they removed and replaced the poiler. not sure how yours is attached.
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Old 03-15-2006, 01:50 AM   #8
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wierd, I know, but the trunk lid is totally tight and the vibration isn't coming from there, it'* definately under the car. I know it'* not the rods in the trunk mostly because if it were, I'd definately hear it inside the car, and it'* vibration/rattle free inside.
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Old 03-15-2006, 01:53 AM   #9
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on my 95, i fixed everything but the muffler shield...

however, the 00+ dont have em...so it cant be that

spare tire well would be my only guess... try putting a 60lb bag of salt in there instead of the tire for the time being and see what it does?
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