1997 Suzuki Esteem Mild vibration/bumpiness while driving

Shakes or Wobbles problem
1997 Suzuki Esteem 158, 00 miles

Hi there,

I have noticed recently a mild vibration/shudder -using them interchangebly because I don't really know the difference :) - while I drive. It is worse (i.E. Happens more often) when I get up around 45-55mph. It feels like a very slight shudder every so often, along with some more constant "bumpy" feeling.

A person sitting in the passenger seat would not be able to feel it, but I can feel it in the steering wheel and possibly under my feet (though I don't know if I am just being too sensitive to it).
When I brake from a high speed, I feel it even more under my feet.

So, again - felt both while driving and then while braking.

I recently had the tires checked for balance and made sure they are not faulty, rotors checked, brakes checked - all are A-OK, though they said the braking issue may be the rotor even if it was good visually. I know my car has a small alignment issue but that has been around forever and nothing new has happened that would particularly throw my alignment off from the "norm".

I also had the crankshaft position sensor (something like that) replaced because my check engine light went on and that's what it said was the problem. They thought maybe that might contribute to my shuddering problem, though they couldn't verify the shuddering feeling on their test drive. It didn't help and I still feel the vibration thing going on.

I know it is doing it. My sister drives my car often and she can feel it as well. The tech notes said "while accelerating" and so maybe I explained wrong. It's not when accelerating. It's when I'm driving period.

I had to have my front passenger CV boot (I think they actually did 1/2 of the axel if that makes sense) replaced over the summer. I'm not sure about the state of the driver's side boot but I haven't ever had it replaced. Is this the problem?

I'm not a car person so hopefully I have described this right and someone can think of something! I'm at the end of my rope with this one.

Thank you!