Need some help / advice
Thread Starter
Intermediate
Joined: Aug 2019
Posts: 29
Likes: 16
From: Georgia
Need some help / advice
I just purchased a '16 C7 coupe, 9K miles. When the mode switch is in Touring the car rides great. However, when I put it in Sport Mode, I feel , for lack of a better description, an oscillating type of vibration in the steering wheel. Not terribly bad, but enough to let you know its there. Car was not hit, I inspected this vehicle inside out and underneath. Is this normal?
Any input would be greatly appreciated.
Thanks, Paul
Any input would be greatly appreciated.
Thanks, Paul
Drifting
Joined: Sep 2017
Posts: 1,464
Likes: 771
From: Miami
C7 of Year Finalist (performance mods) 2019
Congrats on the new ride.
Could be a bent / cracked wheel (very common on our cars) and the stiffer suspension is compounding the vibration.
Could be a bent / cracked wheel (very common on our cars) and the stiffer suspension is compounding the vibration.
Last edited by DTOM; Aug 14, 2019 at 03:59 PM.
Le Mans Master
Joined: Jan 2006
Posts: 6,800
Likes: 2,653
From: Down south in Dixie
Paulie, does your car have the mag ride option? If so, there was an update to the system offered by GM for some earlier C7 models. I don't know if yours would be one of those, but your local GM dealer could check. If it doesn't have mag ride I have no idea what the problem could be. Maybe check your front tires for uneven wear. That may/could cause that feeling with the steering tightened. But, that just a SWAG. Good luck
BTW, the bent.cracked wheels were more prevalent with the Grand Sport, and Z06 wheels.
BTW, the bent.cracked wheels were more prevalent with the Grand Sport, and Z06 wheels.
Thread Starter
Intermediate
Joined: Aug 2019
Posts: 29
Likes: 16
From: Georgia
Paulie, does your car have the mag ride option? If so, there was an update to the system offered by GM for some earlier C7 models. I don't know if yours would be one of those, but your local GM dealer could check. If it doesn't have mag ride I have no idea what the problem could be. Maybe check your front tires for uneven wear. That may/could cause that feeling with the steering tightened. But, that just a SWAG. Good luck
BTW, the bent.cracked wheels were more prevalent with the Grand Sport, and Z06 wheels.
BTW, the bent.cracked wheels were more prevalent with the Grand Sport, and Z06 wheels.
BTW they're the chrome wheels if that makes a difference. The tires are wearing normally. Maintenance records indicate this car was well cared for.
Thanks for the input !
Tech Contributor
Joined: Oct 1999
Posts: 41,037
Likes: 9,801
From: Charlotte, NC (formerly Endicott, NY)
I just purchased a '16 C7 coupe, 9K miles. When the mode switch is in Touring the car rides great. However, when I put it in Sport Mode, I feel , for lack of a better description, an oscillating type of vibration in the steering wheel. Not terribly bad, but enough to let you know its there. Car was not hit, I inspected this vehicle inside out and underneath. Is this normal?
Any input would be greatly appreciated.
Thanks, Paul
Any input would be greatly appreciated.
Thanks, Paul
Bill
Le Mans Master
Joined: Jan 2006
Posts: 6,800
Likes: 2,653
From: Down south in Dixie
The car does have the mag ride option. as far as wheels are concerned I had all wheels removed and road force balanced. All wheels are good.
BTW they're the chrome wheels if that makes a difference. The tires are wearing normally. Maintenance records indicate this car was well cared for.
Thanks for the input !
BTW they're the chrome wheels if that makes a difference. The tires are wearing normally. Maintenance records indicate this car was well cared for.
Thanks for the input !
Last edited by Rebel Yell; Aug 15, 2019 at 07:59 PM.
Moderator
Joined: May 2010
Posts: 15,236
Likes: 4,195
From: Northern Illinois
2023 Corvette of the Year Winner - Modified
2022 C7 of the Year Winner - Modified
St. Jude Donor '18 thru '25
I would say no, if it does it in a stiffer mode.. that is just highlighting the problem.. definitely should be no oscillation as you described.. something is a miss. The update would most likely do nothing to resolve any underlying problems.
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