2003 Mercury Grand Marquis
Engine Problems
2003 Mercury Grand Marquis Engine Problems
Click on a problem below to read more.
- Engine Blown
- Engine Misfires
- Engine Smokes On Startup
- Spitting And Sputtering
- Unintended Engine Acceleration
- NHTSA: Vehicle Speed Control
- NHTSA: Engine And Engine Cooling: Engine
- NHTSA: Vehicle Speed Control: Accelerator Pedal
- NHTSA: Engine
- NHTSA: Vehicle Speed Control: Cruise Control
- NHTSA: Engine And Engine Cooling
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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.
