2005 Mercury Grand Marquis Tune-Up & Engine Service

Schedule Your Mercury Grand Marquis Tune-Up Service Appointment

Tune in to tune up. Listen to your Grand Marquis and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

Tune-Ups to Help Your Mercury Grand Marquis Run Better

Is it time for an engine tune-up? If you tend to ignore your car until something goes wrong, it could be time for a new way of doing things, especially if you drive a 2005 Mercury Grand Marquis. Regular engine tune-ups can optimize your Grand Marquis’s power on the road. Tune-ups help your engine start smoothly and run efficiently, so you can enjoy improved fuel economy and lower emissions. 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.

Engine Tune-Up for Mercury Grand Marquis

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to 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. The third tune-up option is a fuel system cleaning service, which is a three-step process that removes varnish, dirt, and carbon deposits on your Grand Marquis's fuel injectors, throttle body, and throttle plate. This can improve your fuel system’s performance (and therefore, your engine’s 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. A one-size-fits-all engine tune-up procedure doesn’t necessarily exist. Ask one of our technicians what your vehicle needs, based on your driving habits and your car’s current condition.

Where Should I Go for My Mercury Grand Marquis Tune-Up?

If you’re looking for 2005 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: decreased gas mileage, "rough" idling or stalling when stopped, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

*Check with a teammate at Firestone Complete Auto Care for complete terms and conditions regarding warranties.

2005 Mercury Grand Marquis Engine Tune-Up Q&A

  • Will it hurt my Mercury Grand Marquis to drive with old spark plugs? When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.
  • What should I do if I see leaks under my Grand Marquis? Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.
  • Are hard starts and stops bad for my Mercury Grand Marquis engine? Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.

2005 Mercury Grand Marquis Maintenance

Stay ahead of any potential issues with your Mercury Grand Marquis so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

Repairs on Your 2005 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 2005 Mercury Grand Marquis repairs below.