One problem related to suspension noise has been reported for the 2008 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Mercury Grand Marquis based on all problems reported for the 2008 Grand Marquis.
Loud banging noise coming from the right rear suspension area when going over speed bumps and making right hand turns. I have had the car back to the dealership 13 times and they have told me not to bring it back, that I need to learn to live with it.