Your car shakes left to right at slow and high speed when you speed up it doesnt shake when you release the gas changed control arm and suspension what can you do next?

could be a lot of things! maybe bad alignment, bad tires not balanced right, or motor mounts messed up. check in with your local mechanic shop.

what kind of car is it? the only thing that can really throw a car side to side is a bad tire or bend wheel or bent axle on rear wheel drive. put all the tire on a spin balancer and it will show which one if this is your issue.

dodge, Plymouth, and Chrysler mini vans will do this too. feels like a bad separated tire when they do it. they are bad cv shafts.