Can i cannot figure out what it is!!

I have been under the car while playing a 40hz testtone and i still cannot find the rattle.

Its funny, once I deadened my trunk the underpart of my car starts rattling...how ironic!

Please help!!

 

hmmm I am wondering if I should put this in 3rd gen general or leave it here...
I'll wait and see the responses first
Bruce

 

look at your sissor (sp?) jack, that rattles on my car, I know they are not the same, but take that out and see.

 

Thats the thing, i have everything out of my trunk because i sprayed Rubber undercoating in...so its gotta be something under the car.

Its funnt because it never rattled untill i sounddeaded my trunk lid.

love that irony!!

 

SAME THING....

put 70 sq. ft. of brown bread in hatch area.. Just to find that the damn cabin pressure vents, and something under the car is rattling..

My grandpa has a hoist, I will be on it come Thursday testing this out at the same 40Hz level.. I will find it and let you all know what it is..

Please let me know as well if you find it first.. Also please let me know if you find a good alternative to the cabin pressure vents problem..

Thanks, i'll keep you all updated..

 

Blue,

That's what I think I'm gonna do, I thought about it for awhile..

I can leave them the way the are and listen to the stupid fluttering noise on the outside and allow others to hear it and think whatever, and ALSO allow system to breathe which would possibly gain a high SPL, kinda like windows down you know.. Not sure what they would account too..

Or just shut them off, and risk hard closing doors, and the AC & heater not working properly.. whoopty doo

So, hey man thanks for your advice.. What do you think I can hit with that sub/amp combination.. I want to see what you think??

 

hmm, look way up under your back bumper, do you have a piece of styrofoam? that's another thing to look at...

 

there is styrofoam, but the flapping noise is coming from the vents, cause if you put your hand up there and open them inboth locations the rattling goes away..

i know the styrofoam poses a threat as well though....