2009 Honda Civic. here is the story, 2 months ago i was driving on a curve and I did not notice some black ice, I lost control and the car spun once then went over the curb. The inner plastic lining over the tire got damaged but that was about it, ever since then i Immediately noticed a lot of bouncing and vibration whenever i go over 60 on the highway, around 75 I get the most intense bouncing and there is also a noise whenever i have my foot on the pedal at that speed, I am not sure how to describe the sound but it is sort of like something is bumping about 4-5 times per second.
I have taken my vehicle immediately to a repair shop, told them about the problem, paid $70 just for them to inspect it and they told me everything is fine. I took my vehicle again to a tire shop, inspected the tires and the wheels and they said nothing was wrong and they re-balanced the wheels, the problem didn't go away. I took it to another shop and he told me the axle is bad, I was ready to replace the axle but decided to check another mechanic just in case, he told me the axle is fine and he sees nothing wrong. I am not car savvy so I don't know what to do anymore.
The car used to drive very smoothly before the accident, but now it keeps shaking all over the place, i even keep feeling that the vehicle starts to lose control in direction whenever i go over bumpy roads, I never lose control but for a fraction of a second it feels like the car is about to start sliding.
I would like to take it to the dealership but I am concerned about the cost of the inspection and all that. will they check for free or do I have to pay for them to check? I am already planning to have oil change with them anyway.