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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
Curious how the 2003 Grand Marquis compares to other years?
Check out our Mercury Grand Marquis overview to see the most problematic years, worst problems and most recently reported complaints with the Grand Marquis.