G70 road noise

[JCtx]

Road noise is ridiculous on rough asphalt, but that's in part due to the summer tires. I honestly don't think A/S tires will fix that at all, but hopefully they'll make the noise bearable. The last Accord I had (the 6MT version, back in 2014) was quieter than this luxury-aspiring car. Oh, and those fender 'vents' are fake; they don't vent anything. They're just cosmetic. The cabin noise is due to lack of insulation.

 

[ICEGenesis70]

Road noise is ridiculous on rough asphalt, but that's in part due to the summer tires. I honestly don't think A/S tires will fix that at all, but hopefully they'll make the noise bearable. The last Accord I had (the 6MT version, back in 2014) was quieter than this luxury-aspiring car. Oh, and those fender 'vents' are fake; they don't vent anything. They're just cosmetic. The cabin noise is due to lack of insulation.

Hi. The fender vents may not vent anything, but there is a cut-out in the wheel well/fender well lining that feeds air to the hollowed out space inside the fender vents. I know this because I just went out to the garage with a flashlight and looked at the wheel-well and fender vent. They may be non-functional (hopefully) but there is definitely a cut-out in the fender-well lining that leads to the space behind the vent. I think this is why I'm hearing pebbles and rocks pinging at what sounds like the bottom of the front doors. If they have no cooling function, I will just look for some foam spray-on product to fill in the cut-out.

 

[CobraBob]

So, I took delivery of my Sport Prestige 3.3T last Thursday, Feb. 23, and after I got the car home, took it out for a 27 mile night drive on surface streets. I noticed that I kept hearing pebbles, small rocks or other hard road debris pinging the bottom of the car. It did not happen on every street we were on, but it was happening fairly frequently. My passenger noticed it also. Took the car out for a 72 mile afternoon drive yesterday, again on surface streets between Long Beach and Chino, and would notice the same thing occasionally, especially in any areas where there was any road construction completed recently, or otherwise rough asphalt. This is not something I have ever noticed in my 2013 Accord, or in the 2020 Civic Si that I traded in when I bought the G70. I thought it was a case of the wheel wells not having a liner installed, but that was not the case. I went by the service dept. at my dealer this afternoon to schedule an appointment for this weekend, then took the car out for another 25 mile drive on surface streets. Again, got the same pebble/rock sound coming into the cabin occasionally, seemingly from the bottom of the front doors. My theory at this point is that the sound is being channeled into the cabin by the side air vents in the front fenders. There is probably a sound-tube effect from the opening in the fenders into the cabin. I don't think it is coming from the front wheel wells. If this is what it is, it is a design flaw, and I am hopeful that Genesis will come up with an after-sale fix. Pebbles pinging the bottom of your car is not what you want to hear in a car at this price point.

Hmmm, I've put on maybe 125 miles on my new G70 and haven't heard any sound of pebbles pinging. Those miles include freeway, back roads (mostly), and town streets. And I'm a noise freak.

 

[Husky]

Hi. The fender vents may not vent anything, but there is a cut-out in the wheel well/fender well lining that feeds air to the hollowed out space inside the fender vents. I know this because I just went out to the garage with a flashlight and looked at the wheel-well and fender vent. They may be non-functional (hopefully) but there is definitely a cut-out in the fender-well lining that leads to the space behind the vent. I think this is why I'm hearing pebbles and rocks pinging at what sounds like the bottom of the front doors. If they have no cooling function, I will just look for some foam spray-on product to fill in the cut-out.

Does your new G70 have summer tires? If so, the softer, sticker rubber picks up a lot more pebbles on the road than the AS or Touring tires your Accord no doubt had.
Whenever I take out my sportier cars with summer performance tires on them, I notice a lot more of that noise than when I'm driving my G70 or my wife's CX-5 (both with AS tires). It sounds like the tires are vacuuming up every pebble from the road.

 

[ICEGenesis70]

Yes

Does your new G70 have summer tires? If so, the softer, sticker rubber picks up a lot more pebbles on the road than the AS or Touring tires your Accord no doubt had.
Whenever I take out my sportier cars with summer performance tires on them, I notice a lot more of that noise than when I'm driving my G70 or my wife's CX-5 (both with AS tires). It sounds like the tires are vacuuming up every pebble from the road

Does your new G70 have summer tires? If so, the softer, sticker rubber picks up a lot more pebbles on the road than the AS or Touring tires your Accord no doubt had.
Whenever I take out my sportier cars with summer performance tires on them, I notice a lot more of that noise than when I'm driving my G70 or my wife's CX-5 (both with AS tires). It sounds like the tires are vacuuming up every pebble from the road.

Yes, it has Michelin PS4 summer tires. What year is your G70. I’m wondering does it have the same kind of fender vent that my 2023 has.

 

[Volfy]

Does your new G70 have summer tires? If so, the softer, sticker rubber picks up a lot more pebbles on the road...

+1. This is especially true for brand new high-performance Summer tires. These Pilot Sport 4's have a TW rating of 320. Highly doubt Accord/Civic are shod with anything remotely close... well, unless it's a Civic Type R, which come with even higher-performance Michelins (TW of 300 or 240!). Anyhow, once the brand new tires been driven on for a while, the tread surfaces start loading up with dirt and sand particles, they will act less like suction cups.

And when you drive on them even more, especially through the hot Summer months, the tread compound will start to age-harden after repeated heat cycling. This is can be good an bad, depending on your POV.

 

[JCtx]

They may be non-functional (hopefully) but there is definitely a cut-out in the fender-well lining that leads to the space behind the vent.

Yeah, I know that (mine is a '23 SP too), but there's no 'venting' or anything. Plus that has absolutely nothing to do with noise inside the cabin, so irrelevant. The fender liner does not have openings to that cavity there. Plus it's the fender, not the cabin. Change the tires with the ones AWDs come with, which are the Michelin Primacy Touring A/Ss. That's what I plan to do probably for next winter. I didn't want to throw away basically brand new tires, nor get my pristine new wheels damaged right off the bat (which is probably what's going to happen), so decided to wait a year+ to replace the PS4s.

 

[ICEGenesis70]

Does your new G70 have summer tires? If so, the softer, sticker rubber picks up a lot more pebbles on the road than the AS or Touring tires your Accord no doubt had.
Whenever I take out my sportier cars with summer performance tires on them, I notice a lot more of that noise than when I'm driving my G70 or my wife's CX-5 (both with AS tires). It sounds like the tires are vacuuming up every pebble from the road.

You were totally right about this. Also, as the tires got some miles on them, they got less sticky and stopped picking up and throwing pebbles and rocks they way they did when new, thankfully. So, lately I have not been noticing any pebbles hitting the bottom of the car.

 

[Husky]

Glad to hear it! We live on a big, steep hill in NH, so we get sanded a LOT during the winter. Right now it pains me to drive down our road because I can hear all the sand and pebbles kicking up. I'm hoping they'll send the street sweeper up here soon (they don't always, so I take a big broom to the street by our house, haha).

 

[Sal Collaziano]

Hey everyone I’m new to here so hopefully I’m using this right. I had a question does anyone else have a lot of road noise especially in the freeway/highway? I do have 19inch rims and sport tires could that be the case? And if so how can I reduce the sound? I hear a lot of wind as well.

Get in on this discussion:

Thread 'Who here is interested in further sound insulating their Genesis?'

Nov 13, 2024

Is anyone interested in further insulating their Genesis from road/tire and wind noise? If so, there are a few good "do it yourself" kits that I can bring into the forum store. The full kit comes with soundproof padding for the front and rear doors, hood, trunk, and fenders... They're made specifically for each Genesis vehicle and use a combination of lightweight Polypropylene (PP) and polyethylene terephthalate (PET) microfibers, which absorb sound and vibrations with ease - while adding minimal weight to a vehicle unlike those made with heavy butyl.

They're easy to install as they're...

• Sal Collaziano
• Replies: 18
• Forum: Genesis Motors General Discussion

• 

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[steveinarizona]

Assume you have the PS4s? Are they worn? If so, there would be more road noise and especially with the low aspect ratio on the tires. There should be little to no wind noise though.

My GV60P came with Primacy Tour All Season tires. I replace them with Michelin Pilot Sport 4S tires. It was a world of difference in handling BUT it was also hugely noisier. That, to me, was an acceptable tradeoff but each of us must make that decision. Range, noise, handling all are available at different combinations. The Primacy tires had better range and noise (and were substantially less expensive) but the Pilot Sport 4S tires are planted to the ground.

As a Tammany Hall politician said at the turn of the twentieth Century regarding corruption: "Youse pays your money and youse takes your chances".