Why does my car's rear end bounce excessively on one side when I go over

[anticlimatic21]

a bump that hits all four tires? I just got a new Caddy, and at first I thought it was just the way they rode, but after taking it out on the highway a few times and noticing somewhat loose and squirly handling because of this issue, I think there may be something wrong.

My car pulls slightly to the right, and there is also a light cyclical metal scraping sound when I'm turning right while moving. Not sure if it's related. But anytime I hit a bump that stretches across the road, the right rear end wheel bounces more than the rest, and over time makes me a little sea sick. The bounce is magnified a bit on highways in the sense that it's quicker, and just makes the car seem like it's loosely gripping the road. I haven't taken it in to get looked at yet, but I just wanted to brace myself for what the problem could be...

 

[alsoworried]

You didn't say how old the car was, but the 'bounce' you refer to is often caused by faulty shock absorbers. If it's an older car, possibly the springs have lost some of their tension as well.

But truly, no matter what anybody on here says, we are all just guessing. Take it to a good mechanic - your life depends on it.