Car Sways on Backend after allignment

[Sherrie]

My 2000 Hyundai Accent just received two new tires and a 4-wheel allignment. Now on some curves and some uneven road it feels almost like it's fishtailing. What's wrong with it?

[caracas_e30]

Alignment wasnt done right.

Does it do it under braking? acceleration?

[Sherrie]

Thanks for replying. No it doesn't do it when i'm braking or accelerating only when i'm on a curve or on pavement that isn't exactly even. The tires replaced were front tires.

[corwyn]

Do you need new rear tires, too? If they're going bald, with your front tires being new and relatively sticky, maybe they really are sliding around?

[Andy47]

The trick with replacing just two tyres on a fwd is to remove the front wheels, put your rears on the front and the two new tyres on the rear. That should solve the problem. There is a very good Top Gear episode where they test the effect of only putting two new tyres on a fwd car, and the results are surprising! I will have a look to see if I can find the episode on the web, though I doubt I will be in luck. I think your alignment should be ok, and not the cause of this problem.