C7 Roaring Noises
Thread Starter
Instructor
Joined: Feb 2018
Posts: 103
Likes: 29
Well, I'm riding down the road and its either the tires or a bearing issue. Roaring noise speeds up and slows down when I speed up or slow down. It started when I went on a long trip with the car. 400 miles to be exact. Other than that that's all the info I can give. I seem to think it's the BF Goodrich tires making all the noise. I'm running 30lbs air pressure when tires are hot. Don't know for sure if it's the tires. I have had a lot going on lately with my truck also so when this started with my Corvette, it just sent me over the edge a little bit. Thanks for responding.
Heel & Toe
Joined: Sep 2017
Posts: 21
Likes: 3
Well, I'm riding down the road and its either the tires or a bearing issue. Roaring noise speeds up and slows down when I speed up or slow down. It started when I went on a long trip with the car. 400 miles to be exact. Other than that that's all the info I can give. I seem to think it's the BF Goodrich tires making all the noise. I'm running 30lbs air pressure when tires are hot. Don't know for sure if it's the tires. I have had a lot going on lately with my truck also so when this started with my Corvette, it just sent me over the edge a little bit. Thanks for responding.
If able...jack up the car and spin the tire...sometimes a loud grinding noise that stops the wheel spinning fairly quickly could be a wheel bearing
Melting Slicks
Joined: Aug 2004
Posts: 2,165
Likes: 950
From: Keizer Oregon
A few questions:
1) Have you had the car for a long time and now suddenly there is a change and it's making the roaring noise? Or have you only owned the car for a little while and are now noticing it?
2) Are you driving on rough pavement at highway speeds? The tire noise on rough highway at speed can be pretty loud
3) Did you change tires lately?
If none of the above, you should take it to a shop and have it looked at.
1) Have you had the car for a long time and now suddenly there is a change and it's making the roaring noise? Or have you only owned the car for a little while and are now noticing it?
2) Are you driving on rough pavement at highway speeds? The tire noise on rough highway at speed can be pretty loud
3) Did you change tires lately?
If none of the above, you should take it to a shop and have it looked at.
Last edited by oregonsharkman; Aug 27, 2021 at 10:30 PM.
Thread Starter
Instructor
Joined: Feb 2018
Posts: 103
Likes: 29
I have had the car for almost a year and didn't notice it until I drove the car on vacation. I have not changed the tires. I know that there are rough patches of interstate and I have heard that before. It's not rough hgwy or roads, it's different. Seems like the tires. Can someone tell me what were the original tires on a 2015 LT1 Stingray Corvette. The tires on it now are BF Goodrich. The original owner said these are the original tires. When I get the a chance I will lift the car and check the wheel bearings by spinning the tire. Thanks.
Melting Slicks
Joined: Aug 2018
Posts: 2,014
Likes: 1,591
From: Clermont, Florida
Factory tires are Michelin Pilot Super Sports ZP run flats. BF Goodrich, I believe, doesn't make a run flat tire that fits a C7. Do you feel any rhythmic vibration in the steering wheel or dead pedal at highway speeds?
Last edited by DrivesWithTwoFeet; Aug 27, 2021 at 11:46 PM.
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Melting Slicks
Joined: Aug 2018
Posts: 2,014
Likes: 1,591
From: Clermont, Florida
The dead pedal is where you rest your left foot. If you feel vibration have the wheels balanced, tires checked for internal damage and if wheels are bent.. If that all checks out I would take the car to the dealer and go for a test drive with the tech to describe and hopefully replicate the issue. Good luck for a quick repair.
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
The front and rear wheel bearings will sometimes make noise when they are too loose. Drive the car at about 30 mph and move the steering wheel back and forth (keeping in lane but using all of the lane) and listen for differences in sound.
One issue you might have is it seems you may have your tire pressure too low. The tires should be set to 30 psi Cold as described on the door sticker and OM.
Bill
One issue you might have is it seems you may have your tire pressure too low. The tires should be set to 30 psi Cold as described on the door sticker and OM.
Bill
Race Director
Joined: Mar 2001
Posts: 19,965
Likes: 6,769
From: Bonneville Salt Flats
I'm saying the tires, most likely. Have you actually looked at the tires? Are they worn... any of them, and/or in a particular pattern? Since you seem to have no idea about the tires (certainly not original, nor did the seller), you might look for a production date-code on them to interpret how old, and hard they likely are.. Also, they should be at 30# cold, all the way around. You may well find that the edges are "scalloped" contributing to noise, as well might be an issue of tire balance... or, lack there of. That is I'm thinking you've not had checked. My suggestion is to eliminate possible tire problems first, before looking for other, much less likely issues. All the best. 
Thread Starter
Instructor
Joined: Feb 2018
Posts: 103
Likes: 29
Looked at tires today. Inflated to 30psi cold. No cupping or uneven wear. Did not get to road test today due to rain. Forecast says rain likely the rest of the week so I don't know when I will get to test. Tires were balanced when I put new rims on the car. It didn't roar back then and I don't know why it would start doing it now.
Last edited by tonyclark1; Aug 30, 2021 at 07:48 PM.