Had the dealer do my 110,000 maintenance, and they recommended that I change the front passenger lower control arm because one of the bushings was cracked. Well, I didn't want to pay them $500+ to do it, when I could order the parts for $150 and do it myself with my father-in-law (which in hindsight, might have been the smarter choice).

So, we replaced the following parts: both lower control arms, stabilizer bar links, lower ball joints, and 4 tires.

It feels like the whole car is shaking when I accelerate. It stops as soon as I engage the clutch, or let off the gas pedal. Had alignment done, and it seemed like the shaking decreased to 90%. A mechanic recommended new tires and balance (which I needed to do anyway), which seemed to reduce the effect a little bit more. I'm ready to take it apart again to see if we can determine what might be causing the vibration.

We're at a loss as to what would be contributing to this problem, and I was hoping someone might have an answer.

 

I have the same acceleration vibration problem with my 04 TSP 6spd with 121k. Here are some other posts I found searching the site. It looks like this has been pretty well addressed in the past. I'm sure I'll be ordering a couple new axles and a carrier bearing. I need to get my clutch replaced anyway (bad throw-out bearing), so it would be smart for me to get all of this fixed while it's apart.

https://acurazine.com/forums/showthr...ight=vibration

https://acurazine.com/forums/showthr...ight=vibration

https://acurazine.com/forums/showthr...ight=vibration

https://acurazine.com/forums/showthr...ight=vibration

https://acurazine.com/forums/showthr...ight=vibration.

https://acurazine.com/forums/showthr...ight=vibration

 

I have 05 6MT. I am the original owner and babied my TSX. about passing 95kkm, i had vibration from 90 ~ 110 km/h. but anywhere off this range, no vib. I took it to the dealer and they tried everything, allignment, tire rotation/balance, stabl.bar...
but it came down to the front axles. now it feels just fine. good luck on your issue and hope it resolves soon..

 

replace front axles. problem solved.

 

Are the boots cracked? The bearings should not fail or cause this issue with just wear and tear.