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#1 (permalink) Old 08-21-2008, 03:51 PM
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Road Noise

The road noise on my new 08 V6 2wd base model is terrible. After driving my 05 4runner on the same section of turnpike for years, the first day I drove the 08 Rav4 I ran over seams on an overpass and I thought I hit something like running over pipes.

I looked under the hood of both vehicles side by side and the under hood sound proofing is in the same locations as on the 4runner.

Does anyone know what sound proofing the RAV4 is missing compared to other quiet toyotas like my 4runner so I can add it?

The road noise sound seems to radiate from the floor, maybe there is no padding under the carpet?

This morning I could even hear the rotor and pad noise as I backed out of the drive way as if I was standing outside the vehicle.

Where is the sound coming from?

IS the limited version quieter with more sound proofing?

PS: For those who might ask, yes the doors were shut properly and all windows were up.
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#2 (permalink) Old 08-21-2008, 05:06 PM
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I suspect the stock tires have a hard sidewall and don't flex when going over cracks in the pavement. Plus the RAV4 does not have a floaty ride (which tends to be desireable on the highway). A good comparison is the CRV which weights about the same as the RAV4 and does a better job at isolating cracks in the pavement. The downside, is that it doesn't feel as planted on the road (floaty) and it's off-road capability is a joke.

If you decrease the air presure and the problem goes away, perhaps less aggressive tires (for off roading) would be advisable when it's time to replace the stock Yokohama.
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#3 (permalink) Old 08-21-2008, 05:24 PM
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I also noticed that the road noise of the RAV4 is louder than the previous
Toyotas that i've owned. I saw similar threads about this and some
owners even added padding/sound proofing on the floor to decrease
road noise.
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#4 (permalink) Old 08-21-2008, 06:21 PM
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Re: Road Noise

Quote:
Originally Posted by Glenn
Does anyone know what sound proofing the RAV4 is missing compared to other quiet toyotas like my 4runner so I can add it?

The road noise sound seems to radiate from the floor, maybe there is no padding under the carpet?
Yes, after installing towing wiring, I can confirm no padding under carper (or plastic).
Quieter tires should help though.

BTW, did you check tire pressure? It tends to be 40+ psi from the factory.
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#5 (permalink) Old 08-22-2008, 10:25 AM
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Re: Road Noise

Thanks for the info and quick response
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#6 (permalink) Old 08-22-2008, 11:15 AM
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In the quest for maximm mpg, Toyota left out much of the sound proofing that more expensive cars get. The trucklet weighs about 3600 pounds which is way lighter than the competition. You can add Dynamat or similar to the inside of the doors, and around the body and floor, but it is heavy and the weight will add up quickly.

I find my Ltd to be annoyingly loud on bad road surfaces compared to my old Audi, but you get used to it.

Different tires may help... a little.

John E Davies
Spokane WA USA
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#7 (permalink) Old 08-22-2008, 11:46 AM
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A 4Runner is a body-on-frame vehicle, so the body has the additional isolation of the rubber body mounts...a unibody like the RAV will transmit more of that "thonk" on the road joints.

Other than that, I find the RAV pretty quiet on the road. Of course, my previous vehicle was an old Tahoe, so I wasn't used to much quiet anyway.

~Steve in Minnesota
08 Base V6 AWD Silver

"By day two of our four-day drive, no one knew which vehicles would finish in second through eighth places. Yet everyone knew where the Toyota [RAV4] would finish." - Car and Driver SUV comparison test, January 2010
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#8 (permalink) Old 08-22-2008, 12:05 PM
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The noise level varies dramatically with different road surfaces. Highway speed on fresh blacktop can be pretty darn quiet but a concrete highway is the worst. When it finally comes time to replace the original tires I'll be paying close attention to the noise ratings between the available replacements.
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#9 (permalink) Old 08-22-2008, 01:59 PM
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Good point about the unibody RAV4 verses 4runner's frame construction.

I was attributing some blame to the fwd mechanism though my 4runner is 4wd, similar but not the same.

The trailing wiring comments earlier finding no padding under the carpet is probably another one that is key.

Too bad they don't offer sound proofing as an option I would have bought it.

I got the middle level audio system 6cd change 6 spkrs and it sounds great when parked but terrible on the road with the noise.

Thanks for all the input, guess I'll get use to it or I'll put in Dynamat.
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#10 (permalink) Old 08-22-2008, 02:38 PM
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Quote:
Originally Posted by Glenn
The trailing wiring comments earlier finding no padding under the carpet is probably another one that is key.
there is padding under the carpet. look for yourself instead of believing everything you read on a message board.

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