Steering and tire problem when 1st started
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Intermediate
Joined: Dec 2007
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From: Brooklyn NY
Steering and tire problem when 1st started
I have a 2015 A8 Z51. And when I begin to leave my parking spot and I turn the wheel in either direction there is a crunching sound coming from the wheel well area and the feel of the steering wheel feels like your running over a rock. It disapates a bit as I starts driving but always come back after several hours and a restart. Is this normal?
Safety Car
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From: Northern Virginia
Page 10-67 of the owner's manual:
Search this forum for "Ackerman" and you'll find lots of information about it.
Edit: You might find this thread helpful, too:
https://www.corvetteforum.com/forums...ette-does.html
Tire Chatter/Hop When driving at slow speeds and in very tight turns, the vehicle may have tire chatter/hop. This is normal and the vehicle does not require service.
Edit: You might find this thread helpful, too:
https://www.corvetteforum.com/forums...ette-does.html
Last edited by meyerweb; Dec 21, 2015 at 04:02 PM.
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I have a 2015 A8 Z51. And when I begin to leave my parking spot and I turn the wheel in either direction there is a crunching sound coming from the wheel well area and the feel of the steering wheel feels like your running over a rock. It disapates a bit as I starts driving but always come back after several hours and a restart. Is this normal?
Bill
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Brett Foote
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I have a 2015 A8 Z51. And when I begin to leave my parking spot and I turn the wheel in either direction there is a crunching sound coming from the wheel well area and the feel of the steering wheel feels like your running over a rock. It disapates a bit as I starts driving but always come back after several hours and a restart. Is this normal?
E-Ray, 3LZ, ZER, LIFT
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From: NE South Carolina
I have a 2015 A8 Z51. And when I begin to leave my parking spot and I turn the wheel in either direction there is a crunching sound coming from the wheel well area and the feel of the steering wheel feels like your running over a rock. It disapates a bit as I starts driving but always come back after several hours and a restart. Is this normal?
http://netwelding.com/Wheel_Chatter.pdf
Useful info in case you have a friend in the car and you forget and turn the wheel fully when pulling out of a parking spot when it's 35F. He'll tell all your friends what a piece of junk you bought!
The simple solution is make a "K" turn rather than turn the wheel full lock! I know what it is but on a cold morning when backing out of the garage I do that rather than feel like the front end it about to fall apart!
Last edited by JerryU; Dec 22, 2015 at 12:13 PM.
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Steven, I think it will happen 365 days a year no matter what the temperature. The suspension geometry does not change with the temperature and the car will hop when full (or almost full) lock of the steering wheel happens and the speed is slow.
Elmer
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From: NE South Carolina
Never had the issue to any extent with the Goodyears or Firestones in my Z51 C6 with the same width tires. Always used full lock when backing out of my garage in the morning even at 35F! The C7 Michelins are much more race car type construction! With my Z51 C7 I make a "K" turn when it's 45 or below!
Tires with more slip angle move differently side to side when making a slow speed turn at full lock. The racing type construction with the OEM Michelins, especially the Z51, move very little!
All-Season Tires have a greater slip angle so don't need as much Ackerman geometry.
Last edited by JerryU; Jan 27, 2016 at 11:17 PM.
7th Gear
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OUTSTANDING HELP from all you you folks here......so glad I joined up and researched my problem. Had my wife and I worried. Some really smart folks here for sure, as well as very helpful. Can't thanks all of you enough.
Burning Brakes
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From: Upstate NY
Happens no matter what the temp (mostly drove in hot) for mine.
E-Ray, 3LZ, ZER, LIFT
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From: NE South Carolina
In the summer I use full lock when pulling out of my garage and there is hardly any scrubbing, and if warm enough - none. As noted in my above post #13 with pics, agree the steering geometry doen't change but the tire when cold is so "stiff" (particularly evident in the lower profile Z51) the tread surface does not move relative to the carcass so the Chatter, as GM refers to it or hopping, which may be more descriptive, is very sevear.
Last edited by JerryU; Jan 28, 2016 at 02:33 AM.
Burning Brakes
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From: Upstate NY
Perhaps you haven't driven your C7 at full lock when it's 35F! I have and it literally feels like the front end is coming apart!
In the summer I use full lock when pulling out of my garage and there is hardly any scrubbing, and if warm enough - none. As noted in my above post #13 with pics, agree the steering geometry doen't change but the tire is so "stiff" (particularly evident in the lower profile Z51) the tread surface does not move relative to the carcass so the Chatter, as GM refers to it or hopping, which may be more descriptive, is very sevear.
In the summer I use full lock when pulling out of my garage and there is hardly any scrubbing, and if warm enough - none. As noted in my above post #13 with pics, agree the steering geometry doen't change but the tire is so "stiff" (particularly evident in the lower profile Z51) the tread surface does not move relative to the carcass so the Chatter, as GM refers to it or hopping, which may be more descriptive, is very sevear.
Just my experience the tire 'clunks' no matter if warmed up or cold.
My tint guy asked what the frick was wrong with those tires? I said you'll be doing enough C7's soon (back in Nov. 2014), you'll also get used to it! Takes some getting used to for sure.
(And no full lock turns)
Last edited by mikez06; Jan 28, 2016 at 12:26 AM.
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1st Gear
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Front Wheel Hop
I have a 2015 A8 Z51. And when I begin to leave my parking spot and I turn the wheel in either direction there is a crunching sound coming from the wheel well area and the feel of the steering wheel feels like your running over a rock. It disapates a bit as I starts driving but always come back after several hours and a restart. Is this normal?
Why can't GM fix this? What has to happen to get this resolved? I'm afraid to drive this car. I have driven only 4K miles. HELP!!!