Rep Power: 274

hey guys, i did the diy already and everything else i've read in this forum and im getting no rattle in the trunk but underneath the passenger side im hearing a lot of rattle, like two pieces of metal of some sort. i think it may be the heat shield or something but i dont know. anybody ever experience such a problem before or know what it might be?

 
Rep Power: 786

Get under your car near the back, and stick your head up right on the edge of your bumper on the passenger side with the system up. Look/listen upwards and see if the sound is coming from the vent there. In my car, the vent was venting when the bass hit and I got an ugly slapping sound when the bass would drop. I haven't been under my car since then, but that stopped most of the rattle underneath my car. Whether or not there is anything else that rattles there right now I am not sure.

On my car it was on my driver side, but on yours it may be under your passenger side, or it may just sound like it is.

 
Rep Power: 812

It may be something in the engine bay. I had a rattle in there and it sounded like it was coming from inside the car almost.

 
Rep Power: 786

Yeah now that you mention it I have some new rattle coming from the front of my car as well... any idea what that might be?

 
Rep Power: 812

Check anything new you installed. My hid inverter was touching metal and rattling like crazy. So I just put some foam around it. Other things can be intakes or other parts with loose bolts. Make sure any aftermarket stuff is not touching the car body or other metallic objects.

 
Rep Power: 786

Nothing new under my hood ever

 
Rep Power: 812

Or it could be the hood rattling! Mine was really bad until I adjusted those rubber stoppers. Now there's no rattle. It gets better the more you loosen them up, but then the hood lines won't match with the fenders. So don't do too much.

 
Rep Power: 0

I believe he said it was coming from the rear passenger side. i don't know about your car, but i know on my car, that vent in the trunk is on the driver side. On my car I have a metal on metal rattle on the rear passenger side as well, its where my exhaust hits the stock EX sway bar. If you have an ex and an exhaust it may be that.

 
Rep Power: 0

i think im hearing the same rattle, it sounds like its coming from under the car
im gonna try adjusting those rubber stoppers, otherwise i think its the exhaust

 
Rep Power: 0

I had a rattle in the center of the car on the passenger side. It was my exhaust that was too close to the top of the underneath of the car. Go to a muffler shop or something (like Speedy) and have them heat up and move the pipe so stop the rattle if that's your problem.

My noise used to get real loud in the rain...

FYI: The noise isn't damaging your car if that's your problem.