回复：wow,

Thanks for your reply.

I have done the alignment before. It did not help much.  At tire store, the technican showed me to press hard at the corner of car. The car can bounced a couple of times.

So I think the strut must be replaced.

Where do you buy the strut ? in the loca auto store ? or online ? Will the unknown brand on the eBay be trustable ?

Regards