thejimmyd

Hi Paul. I'll start by trying to get some more facts in. We bought the car used and the salesman told my wife that the car had two tires on the rear that had low tread. He sent his men to get some tires and when they drove it they said the tires had "flat spots on them". That when the roads got warm and the tires got hot they would smooth out. That seemed to work at first. Then I noticed that the bouncing was getting worse. So we decided to put some other tires on it to see if that helped. I made the mistake of putting some used tires on it. Bouncing was still there. So I took it to my mechanic and had them check it out for the shocks and struts. He advised that the rear dynamic struts had just a little play. That it would not cause the car to bounce like that. He also said the rear tires that I had on it were cupped. I then went to Sam's club an had the tires put on. The bouncing was greatly reduced but continues at low speed. It would cost me over $2500 total to have the rear struts replaced because you can't replace just one. My thoughts are if this is something that is peculiar to the RX Models and I like them I will have to put up with it. I am not a mechanic and don't know if the struts were replaced (both front and rear) would that solve the problem?

I have a 2004 RX330. At low speed it feels like tires are not round. Just put on new tires from Goodyear. 235/55 R18 100V. Before putting them on we found that the 2 rear tires had cups in them. The ride then was very rough. Since new tires it has smooth out except at low speed. Anyone else have the same problem?