Hopping front end??
Thread Starter
Burning Brakes
Joined: Jul 2006
Posts: 1,116
Likes: 5
From: Northwest, AR
Hopping front end??
Not sure if this is common and I do not recall other posts about it, but.........
When I am backing up to turn around (like out of a parking spot or to turn around in my driveway) with my wheels turned almost to full lock, my front end hops much like a 4X4 does when the 4 wheel drive is engaged in a tight turn. Wondering if that is simply due to the tire width combined with the geometry of backing around in a tight circle? Or if it is due to some kind of problem?
Any thoughts or similar experiences?
Thanks.
When I am backing up to turn around (like out of a parking spot or to turn around in my driveway) with my wheels turned almost to full lock, my front end hops much like a 4X4 does when the 4 wheel drive is engaged in a tight turn. Wondering if that is simply due to the tire width combined with the geometry of backing around in a tight circle? Or if it is due to some kind of problem?
Any thoughts or similar experiences?
Thanks.
Thread Starter
Burning Brakes
Joined: Jul 2006
Posts: 1,116
Likes: 5
From: Northwest, AR
I am assuming it is in the front end since I feel it in the steering wheel. I am not sure how to be more descriptive??? The front end just, well, it hops. The steering wheel has a little jerk-jerk-jerk to it while I am backing around in a tight circle and I can hear it go thump, thump. That is the extent of my descriptive ability!
Advanced
Joined: Nov 2005
Posts: 86
Likes: 0
It is called the Ackerman Angle, it is a non adjustable alignment angle built into the front end geometry, simply put the inside tire, along with turning less than the outside tire actually turns in more than the outside tire.
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Racer
Joined: Jul 2007
Posts: 269
Likes: 1
From: Mount Vernon Indiana
I've had mine for 10 days and 400 miles noticed the same thing. feels like it's in the front end
Safety Car
Joined: Aug 2006
Posts: 4,347
Likes: 25
From: Apache Junction AZ
Had a problem like this with my '89 IROC. The front wheels were turned in to such an extent that they could not easily roll, but instead, scrubbed side ways with a hopping type motion.
BJK
BJK
1st Gear
Joined: Aug 2006
Posts: 1
Likes: 0
I have had my 2007 back to the dealership 4 times in the past year. Turns out it is tire hopping and there is a GM Bulletin 09-04-20-001 stating this condition is within the design criteria (normal) of the vehicle. Covers from 2006-2010. I have had corvettes for 30 years and never had this problem previously. The bulletin was issued in May/09.
Pro
Joined: Apr 2007
Posts: 527
Likes: 0
From: Fort Walton Beach FL
I've got an 05, and mine does it too. Mine is also lowered an inch, so I just assumed it was the tire rubbing on the inside of the wheel well. I just try and NOT crank the wheel all the way on either side. It really only applies in small parking lots, and when doing U-turns.