Soundproofing Prius Prime

The link you provided mentions the weight of the material. I gues that's why Toyota didn't install much (if any?) sound insulation in the Prius? I've seen photos of various new Prius models with the door panels removed. No insulation whatsoever that I can see.

I have always believed that my 2016 Prius is excessively loud & noisy. Much more so than other cars I have owned in the past. But I am told that I'm nuts, other owners report that their Gen4 Prius is very quiet. Ha! Come ride with me someday... and bring earplugs! I like the high mpg, but not all that darn noise. I guess there has to be trade offs.

 

Yes, in the Repair Manual, available by subscription to techinfo.toyota.com.

 

Thanks, somebody else mentioned that too. Mine is the bare-bones Three.
I'd like to go drive a Four Touring and relax in all that silence.

 

Is the Two worse than the four? My four is pretty noisy but we have crappy third world roads where I live in Indiana.

The county patched the road in front of my house and left the rough road sign.

Sorry, I can't help myself.

 

each generation gets a bit quieter. for first time owners, they're all noisy.

 

So you are saying you'll get used to it.

 

sure, the older you get, the less you hear. i did put quiet tires on which made a significant difference.

 

I consider the Prius Prime to be the top of the line? They sure look nice. That's all I see now... all new Primes around my area. I think there have been only a few (4 or 5?) posts from Prime owners who thought the cabin would be a little quieter.

 

Is that the Michelin Defender tires bisco?

 

energy savers. defenders might be close, i'm not sure.

 

That's right, the Energy Savers. Thanks. Sorry, I forgot.

 

Very interesting. If I had known all that, I would have definitely paid a little more and bought the Four model. A lot of noise comes through my side windows. Very noticeable and loud when on the freeway at higher speeds... or any speeds when on a certain kind of pavement or bad road.

And no insulation in the wheel wells. My loud tires makes it even worse.

 

Can you just spray insulation under the wheel wells fairly easily? Rust-Oleum Rubberized Undercoating - Walmart.com

 

I've thought about trying it on my Prius. I looked inside the wheelwells, and I think I saw some things that probably should not be covered up with spray? I'm not sure. The last time I used that stuff was on a 1974 Datsun pickup truck.

 

Mavi,

I sprayed GMuff Sound Deadening dampener in Ema's wheel wells and it eventually gets worn off. And as Starship16 noted there are some things that shouldn't have spray on them, lol.

I noted this somewhere else but can't remember where. The 3 Prii I currently own/drive ranked in terms of silence are Ema (Gen II), Evey (Prime) and Blue (Gen IV - 4). With my wife's old Gen II Touring being between Ema and Evey. So the Gen II's, IMO, were/are the quietest.

Chris

 

Crutchfield sells dampening materials.
https://www.crutchfield.com/p_15410415/Dynamat-10415-Xtreme-Speaker-Kit.html?tp=61811&awkw=75640401625&awat=pla&awnw=g&awcr=47642430985&awdv=t&awug=9002377&gclid=CjwKCAjw9-HZBRAwEiwAGw0QcTwI-OXk7Qv0YmH8N-phKggQTGGy5jSGwDUxrRChrFqeE7D9rye_KxoC3rwQAvD_BwE

And they offer directions and tools needed.

Summit racing offers a spray on sound proofer
https://www.summitracing.com/parts/liz-22031?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-lizardskin&gclid=CjwKCAjw9-HZBRAwEiwAGw0QcfC2OKgL-C533dpMNenT-2qCZEc4RkGKKE-A3MUCVHz9YzzrJBoOWBoCKXEQAvD_BwE

Which would be excellent for doors, it will stay, the stick on pads don’t stay when it gets hot.

Do the doors first, you will get the biggest bang for your buck, lots of sound is bouncing around in the doors,

 

I like seeing the comments from people who have owned (or still own) multiple Prii's. Thanks Chris. The 500,000 Mile Man! What year is your Gen IV -4 ? (and ranked last?)