who has trunk rattle in their s14?

[MOB240]

i used to have 2 12's in my trunk and it rattled like crazy...now im looking in to gettin a new system, and im looking for something that will stop the rattling in my trunk...so far i know of dynamat. but is that stuff any good? is there some other kind of stuff that is better for rattling? thanks

[98koukile]

The other thing you can do is put silicone where the harness goes along the trunk. Just put it in the holes with the clips and that will lessen some rattle

[TheKon]

Bro if you are pushing any kind of power your trunk will rattle. Now what you can do is turn up the music...the sound will drown out the rattle. Like in my car now...it rattles worse than well...any other car I've ever heard...except for 1 POS Audi I installed a system in. Now also granted that system was pushing close to 2000 watts...just to the subs. Dynamat will help. But don't expect miracles. Cars rattle...thats what they do. All I do is turn my music up and rattle isn't noticeable...at low levels...really annoying...at normal listening volume. Can't hear any rattle.

[PoorManQ45]

^^^ I absolutely hate people that do this.

Everyone around you absolutely hates it.

So take the time to find the rattles.

Here's how:

Run a sine sweep. You can find the files at http://www.realmofexcursion.com under the downloads section.

Only use low frequency sweeps. This will keep actual music from interfering with your search.

Then crawl into the hatch and have a listen.

Then listen outside.

I used this method. Guess what was rattling. My hatch lock! So, I dynamated the whole hatch(two layers, on did the inside of the outside panel also). So this exacerbated the problem. So, wrapping the lock in dynamat mostly fixed the problem.

Please for the love of god and all those around you don't just turn the music up

[Looneybomber]

I don't know what your weather seal is like, but I've seen people run rope inside the hollow area to put more pressure against your hatch to keep it from rattling...that is if it's your hatch that is rattling by hitting the body of your car.

[TheKon]

haha music drowns it out on the outside..too...I always drive with the windows down...the only time I'm blaring my music is when I'm out with friends. But dynamat is a good idea...just expensive. Good luck!

[PoorManQ45]

dynamat isn't too expensive.

I recommend the Dynamat Extreme. Everywhere!

I don't like any of there other products. I personally used it on all doors, the hood, hatch, and front floorboards.

If I was going to do the roof i'd use the extreme also instead of the headliner stuff they sell.

I was also considering cleaning the firewall inthe engien extremely well. Then putting the extreme on the engine bay side of the firewall. This is alot easier then tearing apart the dash.

[homeslicej2]

I recommend the Dynamat Extreme. Everywhere!

I don't like any of there other products. I personally used it on all doors, the hood, hatch, and front floorboards.

I have completely dynamated the hatch area of my '90 240, single layer of extreme, and it made a world of difference. I have used dynamat in two other cars. You do have to search for your rattles though if you don't want to do everything. I had a shop use extreme a couple yrs ago on my Lumina. They put it on the trunk lid an dit did absolutely nothing. come to find out the thin piece of body panel under the rear lights was the culprit. I took out my lights, cleaned the dirt off of it, and dynamated it. Rattle went almost completely away. Oh yeah, in my 240, the hatch only rattles a little bit at full volume now instead of half like it used to. Most of my rattles are in interior trim pieces now. The stuff works and is worth the price. It only weights .45lbs ft^2. So 36^2, a bulk pack and more than enough to do the hatch of an S13, is only ~18lbs.

[Loki]

Just went out and tested my car. My sub was rattling a little bit, but I fixed that. From the outside, it sounds like the trunk latch and the area of the trunk edge closest to the front rattle the most. If I press down in the right places it seems to go away, so I'm thinking a rubber seal or something like that may be in order. Any ideas on fixes for this? I don't think that Dynamat would do it.

[homeslicej2]

Yeah, I would look into that to see if your seal is bad. As for your actual latch, I don't know. I have never had a latch vibrate too much. Is it loose maybe? Dynamat should still help the lid though, bc it adds mass to the metal (requiring more energy to make it vibrate/resonate), and stiffens the metal up some too.I don't know though, you're just going to have to troubleshoot it. Maybe poorman or looney can offer you a bit more insight/advice, they seem to have a greater knowledge of car audio than I do.

[BOOMSHAKALAKA]

i used to have 2 12's in my trunk and it rattled like crazy...now im looking in to gettin a new system, and im looking for something that will stop the rattling in my trunk...so far i know of dynamat. but is that stuff any good? is there some other kind of stuff that is better for rattling? thanks

Check out Elemental Design's stuff: http://www.edesignaudio.com/ed...th=24

[PoorManQ45]

Try Second Skin Damplifier. It's cheaper then Dynamat Xtreme and just as good

[Slipstream]

We use to grab a few cans of "Great Stuff" from lowe's or home depot. It's the spray foam in the yellow and orange can. We squirted it into the openings on the trunk braces/frame. Once it expands and hardens, it will cut out alot of that rattling.

[homeslicej2]

Try Second Skin Damplifier. It's cheaper then Dynamat Xtreme and just as good

I read that link posted by looney too. Wish I had know beforehand. I've bought four bulk packs of extreme in the last two yrs. Oh well.

[smockers83]

^^^ I absolutely hate people that do this.

Everyone around you absolutely hates it.

So take the time to find the rattles.

Whatever you do, do not do what TheKon says. If you take the time and patience, you will get the rattles out. If you don't want to use dynamat and do it a cheap way, experiment a little by finding the problem areas and use your imagination for materials from around the house (ie foam can be a good starting place). You will get a lot more compliments on your system and you won't be rolling by someone and all they hear is that absolutely gross rattle muffling out the bass. Another problem area that I haven't seen mentioned yet can be the license plate. Finding the rattles not only makes your system sound better to everyone around you, it'll also run more efficiently since you won't have to turn it up over the rattles (or make the rattles worse for those of us outside). And you'll probably be able to hear better than TheKon at age 70. If you want something to be proud of, take the time and effort--there is more to building a system than just throwing in amps and speakers and calling it a day.

[PoorManQ45]

We use to grab a few cans of "Great Stuff" from lowe's or home depot. It's the spray foam in the yellow and orange can. We squirted it into the openings on the trunk braces/frame. Once it expands and hardens, it will cut out alot of that rattling.

Very true.

Then when you're done if you have a car with hollow frame rails you can fill them with foam. seriously, this has been proven to make them stiffer.

I like using Great stuff as the skin seals it from water.

Also, it's great for tight areas. I like to make a little mold where I want to put pressure at. Usually I'll just use a piece of the sound deadner I'm using. I'll spray the great stuff into the place I want it. Then I'll seal off the compartment(allow a little air or the foam won't expand at all!). When the foam expands it hits the mold, then puts press on all surfaces. When the foam is dry you can remove the mold and it'll stay put for a very long time.

Oh yeah, I just ordered a 60ft^2 roll of elemental designs cheaper sound deadener. I got it from their Ebay store. Saved a whole $7