Quote Originally Posted by Galactus View Post
Never heard of "bump steer." But I have heard of "bum steer," which in journalistic parlance means "nakuryente" or a reporter given wrong information by his source.
"Bump steer" is a term for the thread starter's symptoms that I've read about somewhere.

Let's say the vehicle in question has excessive bump steer. When the vehicle is travelling in a straight line and the front wheels encounter a bump in the road, the tendency is for the said wheels to develop play in the milliseconds that they lose contact with the road, and "steer" themselves at an angle instead of going in a straight line. This is happening without any input from the steering wheel.

http://en.wikipedia.org/wiki/Bump_Steer

It's just a suggestion. I think it can be cured by alignment too, though.