Scotty, Hello. Thanks for all your content. Very refreshing to find someone as willing to help as you. I have a 2014 Chevy equinox. I had the brakes changed after wear at a local brake shop that guarantees their work. After a month or so, the car developed a shimmy when the brakes were applied. we took it back and they put new rotors on. Again smooth sailing for about a month. I read that often they overtighten lugs and that can cause this shimmy. When I looked at the lug nuts, they were very difficult to remove by hand and hand to stand on the wrench to loosen them. The lug nuts were actually twisted and fractured in some areas. I decided to put on new set of discs and pads myself, and torqued them down to the recommended 140 ft-lbs. I greased the guide pins as best I knew how as well and replaced the damaged lugs.. Again the shimmy came back, after about 3 months this time. Really dont want to take back to dealership because I know the first thing they will do is tell my my rotors are warped. They may be, but I know this wont fix the problem. There is also a continuous whirring sound now in the front as the wheels turn..
Any Ideas what is going on?
CrazyKent {black}:crazy:
Mileage?
I read that often they overtighten lugs and that can cause this shimmy.
True. But more important than over-tightening, is that each nut is tightened the same amount.
they were very difficult to remove by hand and hand to stand on the wrench to loosen them.
This is normal. Even with proper torque. I've seen newer vehicles specifications that call for 200 ft-lb
The lug nuts were actually twisted and fractured in some areas.
well this is not normal.
I had the brakes changed after wear at a local brake shop that guarantees their work.
Then they should have held up their end of the bargain and fixed it for you.
replaced the damaged lugs
inspect the studs for damage too.
Again the shimmy came back
This can be caused by low quality pads and rotors. I've even seen rotors that come warped right out of the package.
There is also a continuous whirring sound now in the front as the wheels turn.
That would indicate failed bearings.
https://www.youtube.com/watch?v=wbsUTESwOMY
Maybe the over torquing damaged the bearings, or something else.
No, bearings just wear out, and then cause shimmy.
And warped rotors will cause bearings to wear our sooner (and steering + suspension components)
Thanks for the input. As far as the guarantee on their work, they guarantee parts for life, but labor for 30 days. we went a few days over the second time they tried to fix. Instead of them screwing up again, I basically decided to change them myself. The lugs were cracked and split, like they had been heated up and twisted. I didn't buy cheap parts and the rotors were the highest quality I could find, and had runout well within spec. That's what I don't understand. Shimmy came back even when everything was done correctly. Maybe the over torquing damaged the bearings, or something else.
K