engine vibration off the line

[ptstanton]

I had a small issue with a warning chime related to the front distance sensors which forum members helped solve--thanks!
Here's another one--with my '10 4.6, I am experiencing a small but noticeable 'torque vibration' through the pedal upon accelerating off the line. The vibration disappears almost immediately (I am thinking about 2500 RPMs and only in the start gear)..Its the only non-smooth feature of this engine/transmission...the rest is butter..Anyone else experiencing this? Theories? thanks

 

[Vermillion3]

There is a TSB out on this not sure of the number I know big help....sorry. This post deals with it:

http://www.genesisowners.com/hyundai-genesis-forum/showthread.php?t=6194&highlight=driveshaft

This one two:

http://www.genesisowners.com/hyundai-genesis-forum/showthread.php?t=9404&highlight=driveshaft

 

[ptstanton]

thanks, big help... I am wondering since I have well over 4 yrs, 60K miles left on the drivetrain warranty to just hold off until I take it in for normal service..or is that a repair that should be performed asap? The rumble is most certainly there at start off, but it isnt much and does not affect driving really. thoughts?

 

[Vermillion3]

thanks, big help... I am wondering since I have well over 4 yrs, 60K miles left on the drivetrain warranty to just hold off until I take it in for normal service..or is that a repair that should be performed asap? The rumble is most certainly there at start off, but it isn't much and does not affect driving really. thoughts?

The dealer should repair it no questions asked, as for when.... that is entirely up to you the owner; how much does it bug you? Only you can answer that one my friend.

 

[GJEMD]

I had a small issue with a warning chime related to the front distance sensors which forum members helped solve--thanks!
Here's another one--with my '10 4.6, I am experiencing a small but noticeable 'torque vibration' through the pedal upon accelerating off the line. The vibration disappears almost immediately (I am thinking about 2500 RPMs and only in the start gear)..Its the only non-smooth feature of this engine/transmission...the rest is butter..Anyone else experiencing this? Theories? thanks

Its the center support bearing on the drive shaft. Make a Tech ride with you and demo the issue to him. Don't let them shim or any half measure. Nothing short of a drive shaft replacement will do.

 

[homeofstone]

Its the center support bearing on the drive shaft. Make a Tech ride with you and demo the issue to him. Don't let them shim or any half measure. Nothing short of a drive shaft replacement will do.

+1 for sure and - It takes most of a day to change out the driveshaft. Also fyi this is a common problem with high hp engines. I have seen post about this kind of problem on Cadillac, Mercedes, BMW, etc forums.