One problem related to engine noise has been reported for the 2011 Chevrolet Cruze. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Cruze based on all problems reported for the 2011 Cruze.
The turbocharger, due to a faulty bearing as I am being told by a certified mechanic has caused the blade inside the turbocharger to become unstable causing it slam against the parts inside the charger, thus creating a loud what I can only describe as putting a pen in a metal fan blade while it is spinning. I have the power-train warranty still on the car, but I have been reading online in public forums where this becoming a common issue for this vehicle between the mileage ranges of 30-60 thousand. Please look into this issue my wife was driving the car at the time when it initially started making the noise at about 60 mph on the interstate with our two children in the car. Thankfully she was nearly home where we have the car checked out and it was determined to be the turbocharger.