2003 Mercury Grand Marquis
Worst 2003 Grand Marquis transmission Problems
Click on a problem below to read more.
- transmission not working properly1
- NHTSA: Power Train: Automatic Transmission3
- NHTSA: Power Train: Automatic Transmission: Control ...1
Stay Up to Date
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.