Mazda 3 with wheel vibration and shake over bumps

Maintenance/Repairs
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1

i have a 2008 mazda 3 sedan with 237k miles and its is a 5 speed. on the highway aroun 60-65 i have a steering wheel shake and when i go over bumps in 2nd gear its shake pretty good. now i suspect that it could be the sway bar end link or sway bar link because at the joints of them i can turn it side to side. please help me know if this is the problem

2

At over 200,000 miles, anything could be a problem. Check the bushings first. They probably all need to be replaced.

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3

Ball joints, tie rod ends, etc. could be bad. There are shops that specialize in suspension and alignment. Have it examined by one or two shops and go from there.

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4

Likely, no, that isn’t the problem. Check the things @jtsanders and @shanonia suggested. I’d also add to have the front wheels checked for balance, straightness, and any tire issues.

5

Check the lug nuts right away if you haven’t done that already.

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6

Engine mount failures on the Mazda 3 can cause vibration at highway speeds. There is a service bulletin for this problem.