Anyone Seen This: Power Steering Flutter
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Anyone Seen This: Power Steering Flutter
I had my 2015 Z51 on the alignment rack at my local speed shop last week to do some troubleshooting on a very slight pull to the right. All alignment settings were correct, so one of the owner's expert friends recommended jacking the front wheels up and turning the wheel slowly lock to lock with the engine running. When we did that, a light vibration could be felt in the steering wheel at two distinct places. The real shocker was that during those two light vibrations, the front wheels exhibited a dramatic fluttering, vibrating noticeably. I brought it to the dealer and they did the same test with the same result. I track the car, and don't feel any steering vibration either there or on the street. The dealer wants to see if other C7's do the same thing before deciding how to proceed. Has anyone ever seen this? If any of you have your front end jacked up soon, and can turn the steering wheel slowly lock to lock with the engine running before removing the wheels, please let me know if anything like what I described shows up. Thanks.
JV
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I had my 2015 Z51 on the alignment rack at my local speed shop last week to do some troubleshooting on a very slight pull to the right. All alignment settings were correct, so one of the owner's expert friends recommended jacking the front wheels up and turning the wheel slowly lock to lock with the engine running. When we did that, a light vibration could be felt in the steering wheel at two distinct places. The real shocker was that during those two light vibrations, the front wheels exhibited a dramatic fluttering, vibrating noticeably. I brought it to the dealer and they did the same test with the same result. I track the car, and don't feel any steering vibration either there or on the street. The dealer wants to see if other C7's do the same thing before deciding how to proceed. Has anyone ever seen this? If any of you have your front end jacked up soon, and can turn the steering wheel slowly lock to lock with the engine running before removing the wheels, please let me know if anything like what I described shows up. Thanks.
JV
JV
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St. Jude Donor '15-'16
JV
Last edited by Jet Vet; Feb 9, 2016 at 02:17 PM.
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There is software that runs the electric power steering that runs algorithms to do things like eliminate smooth road shake when going around a long sweeping flat curve.
Maybe the software or hardware that runs this has a glitch on your car (or on many cars)
Maybe the software or hardware that runs this has a glitch on your car (or on many cars)
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Last edited by NSC5; Feb 15, 2016 at 08:57 AM.
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That's what I was about to write. The OP is operating the power steering system outside its normal operating parameters, so it's hard to know if it's really a problem.
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