"Hops" at certain speeds

[wezert]

Im looking for help with my 2001 GTP, 83K. Since about 50K, the car has been giving me a vibration that feels more like a wheel out of round. Its not always there, usually at about 25-30mph, worse when its cold out or even when the car is cold, or sometimes after turning. usually smooths out above 35mph. Comes back a little at 50mph. smooth again at 65mph.
Every time I've had any work done I ask the shops to check for causes of this problem. They always tell me the front end is in good shape. tires have been replaced + balanced also-no change, also sway bar-no change either.
Now I'm starting to wonder if I need struts or engine/tranny mounts.
Thanks in advance for any help.

 

[Bio248]

engine/transmission mounts and axles are usually the culprits for any vibrations that aren't wheel/tire related.

 

[Sandman]

Are you lowered at all?

Otherwise I'd check out your mounts.

 

[DirtDog]

Does the hop or vibration feel worse when u turn around turns certain ways? Or can u feel it while accelerating then not when u let off the gas? The more details about when u feel it the better

 

[wezert]

not lowered (no mods). It is sometimes worse after a right turn (when cold)and also seems to lessen under acceleration.

 

[DirtDog]

not lowered (no mods). It is sometimes worse after a right turn (when cold)and also seems to lessen under acceleration.

OK now it sounds more like a CV half shaft. I had to replace mine and they were like that. If u turn right and it happens then it would the left side CV half shaft that needs replacing. I would inspect that CV half shaft and see if the boot is broken or leaking grease

 

[wezert]

Thanks

 

[DirtDog]

No problem. Jack the car up and put it in neutral and spin front tires see if u hear anything. Also grab the wheel at the 12 and 6 o'clock and push and pull see if there any wiggle if so its a bearing. Then grab at the 3 and 9 oclock and wiggle it...if there's play a tie rod end is bad