Will it hurt my Mercury Grand Marquis to drive with old spark plugs?

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 does a puddle underneath my Mercury Grand Marquis mean?

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

You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.

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

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

How often should I clean my Mercury Grand Marquis fuel injectors?

The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your Mercury owner’s manual for exact guidelines.

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.

1985 Mercury Grand Marquis Tune-Up & Engine Service

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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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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, now is the time to work on that habit, especially if you drive a 1985 Mercury Grand Marquis. 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, so you can enjoy improved fuel economy and lower emissions. When you take your car for regular engine tune-ups as recommended by Mercury, you invest in your Grand Marquis's long-term health and engine performance.

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 first is the standard Firestone Tune-Up. It includes a complete visual inspection of engine components, installation of new spark plugs, and 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 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. 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 Should I Go for My Mercury Grand Marquis Tune-Up?

If you’re looking for 1985 Grand Marquis engine tune-up services, head to Firestone Complete Auto Care. Follow Mercury's recommended maintenance schedule or book an appointment as soon as you notice one of the following: shaking while the engine is idling, poor fuel economy, engine knocking, or an illuminated check engine light.

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

Common Engine Tune-Up Q&A For 1985 Mercury Grand Marquiss

Will it hurt my Mercury Grand Marquis to drive with old spark plugs? 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 does a puddle underneath my Mercury Grand Marquis mean? 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 hard starts and stops bad for my Mercury Grand Marquis engine? You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.
Where can I get a tune-up for my Mercury Grand Marquis? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercury Grand Marquis.
How often should I clean my Mercury Grand Marquis fuel injectors? The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your Mercury owner’s manual for exact guidelines.
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 - 1985 Mercury Grand Marquis

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Mercury Grand Marquis to keep it on the road and running smoothly. Learn more about maintenance below.

Repair Service for Your 1985 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 1985 Mercury Grand Marquis repairs.