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post #1 of 23 (permalink) Old 04-23-2019, 07:39 AM Thread Starter
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The sound deadening Project

Hi everyone, this post will be all about my adventure into sound deadening my rattle box and trying and hoping on making my Rav quiet enough to me and getting rid of all those rattles. First, let start by saying this is the first time I ever venture into installing sound deadening into a car, which means this will be a learn as you go experience. I'll be more than happy to answer any question as the project go if I can answer them.


This project will consist of improving the sound insulation into the Rav4 in a why that will hopefully reduce road noise and random door rattle. To do this, I am anticipating on doing the following areas:


- The 4 door panels (As per the picture, you need to do the inside door, the door panel and the plastic panel.
- The Front pillars
- The center console (Where the shifter and armrest is)
- The Trunk
- The entire back of the Suv (Spare area, fenders but I am not touching the roof)
- The hood


For this project, I'll be turning my-self to a product called Butyl made by Noico. This product is about 1/3 what Dynamat cost and is really similar. This can be bought on Amazon. Installation is as simple as laying it down and rolling it with a roller.


Few things I've learned from the door I did on Sunday. This product is easy to apply and you don't need to heat it. Just lay it off in the sun and it's maniable. The process is not hard per say but is time consuming. A single door took me 3 hours and about 5 sheets of material.


I also learned that our doors are made of 2 layers of thin metal. I'd call it an inner skin (inside the door) and outer skin (where you can see the speaker). I am not 100% if one could disassemble the outer skin to gain easier access to the inner skin, but I was personally not confortable tinkering with this. I simply decided to remove the white plastic of the outer skin to gain access to the inside and do my best to reach and apply the material. Also, I to know if a difference is made, I took a few sound reading. Going 115km/h on the highway, I hit a an average of 86db. Baseline was 48db with engine off.

Now enough bla bla and here are a few picture of the first door.
Attached Images
File Type: jpg Door before.jpg (172.6 KB, 61 views)
File Type: jpg Door after.jpg (205.7 KB, 58 views)
File Type: jpg Inside Door Before.jpg (100.4 KB, 58 views)
File Type: jpg Inside door Inside 2.jpg (67.7 KB, 68 views)
File Type: jpg Inside door After.jpg (192.2 KB, 57 views)
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post #2 of 23 (permalink) Old 04-23-2019, 07:45 AM Thread Starter
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post #3 of 23 (permalink) Old 04-23-2019, 07:48 AM Thread Starter
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post #4 of 23 (permalink) Old 04-23-2019, 10:44 AM
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I wonder how much lining the hood will help. Also 86db seems really loud, my old 2007 car with crap tires is like 79db on the highway.
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post #5 of 23 (permalink) Old 04-23-2019, 12:01 PM
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I’m betting that you’re going to see big results just from the front two doors and the hood, but good on you for undertaking a full project like this.
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post #6 of 23 (permalink) Old 04-23-2019, 12:06 PM
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Quote:
Originally Posted by mikeycancino24 View Post
I wonder how much lining the hood will help.
See Hood Insulation in the 4.5 General forum, 2mm butyl dampener made a good difference alone, but the HV hood insulator and additional acoustic foam made a bigger difference in reduced engine noise perceived in the cabin.

2019 XLE Premium AWD
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post #7 of 23 (permalink) Old 04-23-2019, 12:33 PM Thread Starter
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Originally Posted by mikeycancino24 View Post
I wonder how much lining the hood will help. Also 86db seems really loud, my old 2007 car with crap tires is like 79db on the highway.

I was also surprised of the reading. My reader could be off for sure, but I'll use the same reader, road and condition when I am done to get as little variation off.
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post #8 of 23 (permalink) Old 04-23-2019, 01:00 PM
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I was also surprised of the reading. My reader could be off for sure, but I'll use the same reader, road and condition when I am done to get as little variation off.
My "reader" is just an app on my phone but who knows. Seems high in comparison to what automotive publications record on new cars. For reference the new Chevy Silverado recorded a 65 db at 70mph(car and driver). Still will be interesting to see the results.
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post #9 of 23 (permalink) Old 04-27-2019, 01:30 PM
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And how it is going?
I've come to ask you a favor, could you post also the pics of dissasembly stages?
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post #10 of 23 (permalink) Old 04-28-2019, 09:51 PM Thread Starter
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And how it is going?
I've come to ask you a favor, could you post also the pics of dissasembly stages?
I'd invite you to view my other post. It contains all the information and pics to opening the door panel. https://www.rav4world.com/forums/197...ng-mirror.html

The project for now is on hold waiting for better weather. It's been cold lately and i am trying to figure a rattle by my shifter console.
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