Sound deadening

My 2004 Sienna allows a lot of road/tire noise into the interior. Are there sound deadening kits or materials available , either after market or factory? Thanks.

Go to a Car Audio store…or There are kits available that you can buy or have professionally installed.

The parts store will also have sound deadening materials and applications. Rubberized undercoating used properly can reduce sounds somewhat. Sheets of sound deadening material can also be applied to areas like behind the wheelwell splash shields and even your floorboards. A better carpet pad may even help.

Mike’s idea was a good one. Perhaps they’ll even have a sound cancelling technology. Sound cancelling senses the soundwaves and generates waves of the same amplitude exactly 180 degrees out of phase, cancelling the sound.

Realize that your success may be limited. Much of the sound propogates up from the tires themselves through the various components that connect the tire to the body. High end luxury vehicles put money and time (via acoustical engineering teams) to incorporate into the designs materials and component that dampen these traveling vibrations.

Just FYI: Having it done in any way that makes a serious difference will not be an insignificant task or cost.

Has it always been like this - or is it maybe related to your current tires?

I would suggest starting by making sure of what is making the noise.

“Perhaps they’ll even have a sound cancelling technology. Sound cancelling senses the soundwaves and generates waves of the same amplitude exactly 180 degrees out of phase, cancelling the sound.”

You’re thinking of the Tom Clancy novel Cardinal of the Kremlin.

In automobiles, exploiting this phenomenon is limited to muffler construction and there’s no “sensing” involved.

Going forward, I expect better of you.

Caller X, what the H*** is your problem?

Yes, sound cancelling technology does exist for cars. But frankly, I’m getting tired of being insulted by you and will not explain myself to you until you grow up.

Thanks to all respondents; The OEM tires were Michelin and were much noisier than the current Yokohamas. It definitely is road/tire noise, and has been there since new, but less with the new tires.

Auto body supply stores can get adhesive sound deadening pads that can be cut to fit.

tsm, Caller X is the latest version of a pain in the butt visiting this site. Every post that caller x has made on any thread has been mean spirited and petty. If you remember turds like maaco or vw fuel door then you might see some patterns.

You’re thinking of the Tom Clancy novel Cardinal of the Kremlin.

This technology is real and works. I have it and use it. Think Bose and air planes.

Thanks for your support. You’re right, I’ve been helping out here for a long time now and should remind myself that every now and then one of these posters drifts through. I should resist taking these posts so personally. There are truely a lot of great folks here and I should remind myself of that.

Yes, I’m aware of the technology, thank you. Please posit an example of such a technology being used in the automotive field. Muffler construction or any other passive system which does not use “sensing” doesn’t count. Any technology that requires wearing headphones doesn’t count. That’s why I didn’t suggest that the OP simply buy an icepick.

In the late 90’s we had quite a few Corvette owners that looked for ways (at manufacture expense) to dampen the noise from the rear tires,and nothing really worked out. I believe the source of the noise was just too great.

Caller x,every once in a while many of us cross each other, but the unwritten rule is we don’t carry the anger or provacation from post to post,no one wants to read about you pounding on MB (or anyone else for that matter) each and every chance that is presented. In reality the choice is yours,you can choose to get along. One regular presented to me advice on how to get along and the advice was “you don’t always have to have the last word” and it was the best piece of advice I have recieved in quite a while.

Aside from the good suggestions for sound deadening, consider using different tires. Some tires transmit a lot more road noise than others, and tires often transmit more road noise as they approach the end of their tread life.

Replacing the Continentals on my wife’s car with Michelins made a dramatic improvement in interior noise level.

I agree with Manolito. Look for tires that have a good noise rating from Consumer Reports or another reviewer. I have a Mazda Protege that came with Toyo tires. We recently purchased Faklen tires and the noise inside the cabin has been cut in half. I remember being on the freeway having a hard time talking to the passenger. With the new Faklen tires, I hear more wind noise now then anything.

Sienna is the quietest minivans out there. Sounds like you have noisy or oddly worn tires.

You could have noisy wheel bearings. I have seen this on a Honda but don’t know how common it is. I have read about active noise canceling technology on some very high end cars ( $300,000 ) and up but I can’t remember which makes, models, or years so don’t bet your house on it.

The reason sound cancelling works is an opposite sound wave arriving at the listener at the same time. This only works with very tricky bits of audio engineering for a car. Head phones are trivial in compairison.

Honda uses it TODAY on their V6 models with cylinder deactivation. Please do your homework.