vibration on acceleration

whats up everyone,
 
i drive a 2004 accord ex couple 4cyl with an auto.  the car has only about 28K miles on it so far.   the problem im having is a very noticable vibration ONLY during brisk acceleration (like pulling out into traffic or any other time i go quickly from a complete stop).  ive read other threads about tire balancing, which i have already had done and will have done again when i rotate my tires this week.  this seems to only slightly relieve the problem.  the car is under warranty and they have test driven it at the dealership and admit to feeling the problem:  however, the technician who works on my car ( and is also a friend of mine) says theres nothing wrong with the suspension, tires, etc.  im taking the car back in this week to have the brakes serviced and i was wondering if anyone knew of any other reasons i would be having this problem.  maybe something i, or the dealership, has overlooked.
 
any suggestions would be appreciated
thanks

Where's the vibration? Pedals, steering wheel, whole car, front end....

vibration under take off can be a worn cv shaft joint, that only vibrates under weight shift like a launch, you wont feel wheels/tires out of balance until you get up to higher speed. Sometimes a shimmy can be felt if a bushing (control arm) is failed or collapsed (not preloaded if rubber) prematurely. You can look under the car and see if the suspension is at fault, its hard to diagnose without actually driving the car.

quote:

ORIGINAL: frankBullitt

whats up everyone,

.  the car is under warranty and they have test driven it at the dealership and admit to feeling the problem:  however, the technician who works on my car ( and is also a friend of mine) says theres nothing wrong with the suspension, tires, etc. 

any suggestions would be appreciated
thanks

let me get this right,, they feel the problem and they gave you the car back without fixing it ????WOW  times must have changed , when i used to work at a dealership and car was under warranty ,, we left no stones unturned till we fixed the customer complaint , giving customer a rental car ,at times we lost our rear end on a job  working on the flat rate system..on some stupid little rattle ,
Like Super suggested , it could be a worn or out of grease  INNER cv joint .....have the tech take a close look at them, have him inspect them for looseness and  if they feel ok, have him remove the inner cv boot clams and stuff the inner cv boots with grease, put it together and go on a test drive .......
car is undwer warranty DEALER has to fix it to your satisfaction ,,

thanks for the suggestions,
 
sorry about the vague "vibration" description.  when i take off, it feels as though the entire front end is wobbling back and forth.  i guess the best thing i can describe it as, is the feeling it would have if the wheels were coming loose (obviously theyre not).  im taking it back in tomorrow and i will suggest that they check the cv joint. 
 
as far as being under warranty, DesertHonda, i think youre right, times have changed.  this particular dealership changed ownership in the last yr and service has gone straight to hell.  it just happens to be the closest one.  if they cant fix the problem i'll take it to another dealership and get a second opinion.
 
thanks everyone