2000 Mercury Sable LS Premium
We have had this car aligned multiple time and
asked the steering wheel to be centered(which
they did). But it continues to pull to the left. The
front tires are about 3+ years old and close to
being replaced, but I don't want to put new on until
the alignment is right. Work has been done by a
national tire shop.
the worn tires might be the issue letting the vehicle drift. Also have the steering and suspension components looked at. On a 20 year old vehicle, that is possible. You might want a decent mechanic test drive it and get it on a lift to give you a valid reason.
It has done this since tires were brand new. And has been "aligned multiple times.