One problem related to engine rattling and whining sounds has been reported for the 2011 Buick Regal. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Buick Regal based on all problems reported for the 2011 Regal.
Motor has very high oil consumption. Going through 5 quarts or more before system indicates the vehicle needs a oil change. Engine has a loud rattling noise at start up.