Keep your Grand Marquis running newer, longer. Schedule an engine tune-up as soon as you notice your engine running differently. Make your appointment today.
Is it tune-up time? If you tend to ignore your car until something goes wrong, it might be time to change your ways, especially if you want your 2003 Mercury Grand Marquis’s engine to last for a long time. Regular engine tune-ups can optimize your Grand Marquis’s power on the road. Tune-ups give your engine a boost in efficiency, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you follow the guidelines specified by Mercury for your vehicle’s tune-up schedule, you’re taking vital steps toward keeping your Grand Marquis’s engine running smoother, longer.
The Firestone Complete Auto Care location in your community offers several Mercury Grand Marquis engine tune-up services. The standard Firestone Tune-Up is one service option. This includes the installation of new spark plugs and a visual inspection of your engine’s components, plus a lifetime warranty on parts*. The second service focuses on your Grand Marquis's filters, specifically replacing the air filter and fuel filter. Yet another service is a fuel system cleaning process, which involves removing varnish, dirt, and carbon deposits that have built up inside the fuel injectors, throttle body, and throttle plate in your Grand Marquis. This goes a long way in boosting your fuel system’s overall performance. Consider this when choosing a tune-up service for your Grand Marquis: your vehicle’s maintenance record and mileage can determine which service is best. If you’re not sure what services are the best fit for your car, let us help! Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.
If you’re looking for 2003 Grand Marquis engine tune-up services, head to Firestone Complete Auto Care. Not sure when you’re due for a tune-up? Use Mercury’s recommended maintenance schedule as a reference point, or schedule an appointment ASAP if you notice any of these signs: shaking while the engine is idling, poor fuel economy, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.
*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.
Take care of your vehicle and it'll take care of you. Click on a service below to learn more about properly maintaining your Mercury Grand Marquis.
Your Mercury Grand Marquis runs best when it’s well cared for. Make sure it’s always in tip-top shape with repairs from Firestone Complete Auto Care. Learn more about 2003 Mercury Grand Marquis repairs below.