[Duckybill]

Ok, now that my A6 is much smoother, I would like to address another problem with my 2010 LTZ, Ecotec, A6. I haven't been to a dealer yet. Problem is at around 60 MPH I start feeling a slight vibration and what sounds like road noise but it isn't. Not continuous, but on, off, on, off, on ,off, consistently. I've noticed it on several different highways. Anyone else had this? This is pretty much my last issue with my new Malibu. Everything else is fine.

 

[Silver LTZ]

Ok, now that my A6 is much smoother, I would like to address another problem with my 2010 LTZ, Ecotec, A6. I haven't been to a dealer yet. Problem is at around 60 MPH I start feeling a slight vibration and what sounds like road noise but it isn't. Not continuous, but on, off, on, off, on ,off, consistently. I've noticed it on several different highways. Anyone else had this? This is pretty much my last issue with my new Malibu. Everything else is fine.

Could be a few things. I had a "bouncy" feeling at around 55 or so that was basically totally fixed with the re-flashes they did.

BUT, it could be other things. Many people complain about the LS2's as a whole, I had three bad ones on my old G6 GTP that the dealer replaced, it could be a tire/s out of balance or you ran over something and something got bent. Could even still be the transmission. At that speed it is in 6th gear, and it doesn't always need to be, so it could be some transmission lugging/torque converter flutter.

Keep us posted.

 

[bobstoneware]

My 2009 Malibu LTZ has had a vibration problem since first received. Dealer rebalanced tires; did not help. Dealer took car for "forced balance" of tires to independent tire dealer. Result 2 tires were defective and GM replaced. Helped with vibrations below 60mph. 60 mph - above intense vibrations in steering wheel, driver's seat, driver legs to knees. Car has 2200 miles. Any suggestions as car is going back in to Dealer for further inspection.

 

[Silver LTZ]

My 2009 Malibu LTZ has had a vibration problem since first received. Dealer rebalanced tires; did not help. Dealer took car for "forced balance" of tires to independent tire dealer. Result 2 tires were defective and GM replaced. Helped with vibrations below 60mph. 60 mph - above intense vibrations in steering wheel, driver's seat, driver legs to knees. Car has 2200 miles. Any suggestions as car is going back in to Dealer for further inspection.

Could be so many things, since they did the Road Force balancing, I'd say next step would be to try the reflashes they have for the computer. This has helped some alot (like me) and not done anything for others though. You have to remember as for the tires, the Road Force balancer has a number span that is "good". So the two tires they did not replace might still be on the boarder of being bad, which means you will feel them.