My first thought is that the guy at costco torqued the lugs in a circle
rather than in a star pattern ... and by fully torquing the first one
before starting on the next rather than doing it evenly.

Mike

John Goubeaux wrote:
> So, I just had a new set of 15 inch rims installed with new tires. The
> rims are the Rhein alloy models.
>
> After they were installed (by costco) I noticed that when braking I am
> now getting a pulsing action on the brake pedal. I recognize this as
> being from the rotors being warped. I was not getting this before the
> rims/tires were installed.
>
> So the question is: Could this been as a result of over tightening the
> lug nuts ? Or would they have had to slam the rotors with the rim to do
> this?
> or is it just coincidental?  and what might the remedy? Replace them?
> the rotors have never been turned.
>
> -john
>