2003 Mercury Grand Marquis
Worst 2003 Grand Marquis drivetrain Problems
Click on a problem below to read more.
- whine from rear axle1
- NHTSA: Power Train6
- NHTSA: Power Train: Axle Assembly1
- NHTSA: Power Train: Axle Assembly: Axle Shaft: Seal1
- NHTSA: Power Train: Driveline: Differential Unit1
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Compare Mercury Grand Marquis Model Years
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Check out our Mercury Grand Marquis overview to see the most problematic years, worst problems and most recently reported complaints with the Grand Marquis.