When should Mercury Grand Marquis spark plugs be replaced?

Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.

What should I do if I see leaks under my Grand Marquis?

Don't ignore puddles of fluid under your Mercury Grand Marquis. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.

Are some driving habits better for my Mercury Grand Marquis engine than others?

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.

I need a Mercury Grand Marquis tune-up. Where can I get on?

At your nearby Firestone Complete Auto Care! Whether you need Mercury Grand Marquis service, maintenance, or repairs, our technicians can get the job done.

How often do Mercury Grand Marquis fuel injectors need to be cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your Grand Marquis fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.

Who offers Mercury Grand Marquis tune-ups?

When your Grand Marquis needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

1998 Mercury Grand Marquis Tune-Up & Engine Service

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Schedule Mercury Grand Marquis Tune-Up

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.

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Enhance Mercury Grand Marquis Performance with a Tune-Up

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 1998 Mercury Grand Marquis’s engine to last for a long time. Routine engine tune-ups can bring power back to your Grand Marquis. Tune-ups help your engine start smoothly and run efficiently, which can lead to lower emission levels and better fuel economy. When you get routine engine tune-ups based on Mercury's recommendations, you can rest assured you’re investing in your Grand Marquis’s long-term engine performance.

Mercury Grand Marquis Engine Tune-Up Services

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. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. The second service focuses on your Grand Marquis's filters, specifically replacing the air filter and fuel filter. Our third service is a thorough cleaning of the fuel system. During this type of tune-up, we use a three-step process to get rid of harmful varnish, dirt, and carbon deposit buildup in your Grand Marquis’s fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Keep in mind that your Grand Marquis's mileage and maintenance history can uniquely impact its tune-up needs. If you’re not sure what services are the best fit for your car, let us help! Chat with a Firestone technician before you jump into a specific service to ensure your engine tune-up money is well-spent.

Where to Get a Tune-Up for Your Mercury Grand Marquis

If you’re looking for 1998 Grand Marquis engine tune-up services, head to Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from Mercury, or make a service appointment if you notice any of these symptoms from your engine: stalling or shaky idling when you’re stopped, diminished fuel economy, engine knocking, or an illuminated check engine light.

*Ask a Firestone Complete Auto Care teammate about full terms and conditions for warranties.

1998 Mercury Grand Marquis Engine Tune-Up Q&A

When should Mercury Grand Marquis spark plugs be replaced? Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.
What should I do if I see leaks under my Grand Marquis? Don't ignore puddles of fluid under your Mercury Grand Marquis. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.
Are some driving habits better for my Mercury Grand Marquis engine than others? 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.
I need a Mercury Grand Marquis tune-up. Where can I get on? At your nearby Firestone Complete Auto Care! Whether you need Mercury Grand Marquis service, maintenance, or repairs, our technicians can get the job done.
How often do Mercury Grand Marquis fuel injectors need to be cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your Grand Marquis fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.
Who offers Mercury Grand Marquis tune-ups? When your Grand Marquis needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

Proactive Maintenance - 1998 Mercury Grand Marquis

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.

Repair Service for Your 1998 Mercury Grand Marquis

Your car takes care of you, and we’ll take care of your car. When it’s time for a repair on your Mercury Grand Marquis, we’re here to help. Check out more info below about 1998 Mercury Grand Marquis repairs.