Re: Grinding/Vibration from 2nd to 3rd Gear
I just bought a CG Limited with the 5.7L motor. Under moderate to heavy acceleration I was getting a grinding noise. The dealership also reproduced the same noise at a standstill by hold the brakes and in drive raising the RPM to around 2K. The issue they finally found is the right side exhaust was rubbing up against a heat shield due to the torque of the motor. They adjusted the head shield and now the noise is gone.
Hope that Helps