What happens if my Mercury Grand Marquis spark plugs fail?

Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Mercury’s recommendations.

What do I do if I see a pool of liquid under my Mercury Grand Marquis?

Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.

Are hard starts and stops bad for my Mercury Grand Marquis engine?

Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.

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

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercury Grand Marquis.

How frequently do the fuel injectors in my Mercury Grand Marquis 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 can I go to for Mercury Grand Marquis tune-ups?

Your local Firestone Complete Auto Care is happy to help with your Mercury Grand Marquis tune-up. Visit us online to see our latest offers and book an appointment.

Engine Tune-Up Service for Your 1990 Mercury Grand Marquis

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Schedule an Appointment for Your Mercury Grand Marquis Tune-Up

If your Grand Marquis is acting strange or making new noises, it could be engine tune-up time. Don’t wait until small problems get bigger. Make an appointment now.

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Enhance Mercury Grand Marquis Performance with a Tune-Up

Is it time for an engine tune-up? If you tend to ignore your car until something goes wrong, now is the time to work on that habit, especially if you want your 1990 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. They're designed to help your engine start easier and run more 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 first is the standard Firestone Tune-Up. This includes the installation of new spark plugs and a visual inspection of your engine’s components, plus a lifetime warranty on parts*. A second service option replaces the air and fuel filter in your Grand Marquis. 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. This goes a long way in boosting your fuel system’s overall performance. Here’s something to remember when choosing services: the mileage and service history of your Grand Marquis can determine what kind of service it needs. 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.

Where to Get a Mercury Grand Marquis Tune-Up

Schedule your next 1990 Grand Marquis engine tune-up service at 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: 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.

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

1990 Mercury Grand Marquis Engine Tune-Up Q&A

What happens if my Mercury Grand Marquis spark plugs fail? Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Mercury’s recommendations.
What do I do if I see a pool of liquid under my Mercury Grand Marquis? Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.
Are hard starts and stops bad for my Mercury Grand Marquis engine? Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.
Where can I get a Mercury Grand Marquis tune-up? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercury Grand Marquis.
How frequently do the fuel injectors in my Mercury Grand Marquis 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 can I go to for Mercury Grand Marquis tune-ups? Your local Firestone Complete Auto Care is happy to help with your Mercury Grand Marquis tune-up. Visit us online to see our latest offers and book an appointment.

Proactive Maintenance - 1990 Mercury Grand Marquis

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.

1990 Mercury Grand Marquis Repair

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 1990 Mercury Grand Marquis repairs.