When should Mercury Marquis spark plugs be replaced?

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 do I do if I see a pool of liquid under my Mercury 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 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 Mercury Marquis tune-up?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercury Marquiss.

How frequently do the fuel injectors in my Mercury Marquis need to be cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your 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 performs Mercury Marquis tune-ups?

When your 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.

1984 Mercury Marquis Tune-Up & Engine Service

Get a Tune-Up

Schedule Your Mercury Marquis Tune-Up Service Appointment

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

Schedule an Appointment

Enhance Mercury Marquis Performance with a Tune-Up

Is your engine overdue for a tune-up? If you tend to ignore your car until something goes wrong, it might be time to change your ways, especially if you drive a 1984 Mercury Marquis. Periodic tune-ups can bring more power back to your Marquis’s engine. They're designed to help your engine start easier and run more efficiently, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you get routine engine tune-ups based on Mercury's recommendations, you invest in your Marquis's long-term health and engine performance.

Routine Engine Tune-Up Service for Your Mercury Marquis

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 1984 Mercury Marquis. 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 Marquis. 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 Marquis's fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Keep in mind that your Marquis's mileage and maintenance history can uniquely impact its tune-up needs. 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 to Get a Mercury Marquis Tune-Up

Come to Firestone Complete Auto Care for your next 1984 Marquis engine tune-up. 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, knocking noises in the engine, or a lit up check engine light on your dashboard.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

Questions About 1984 Mercury Marquis Engine Tune-Ups

When should Mercury Marquis spark plugs be replaced? 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 do I do if I see a pool of liquid under my Mercury 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 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 Mercury Marquis tune-up? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercury Marquiss.
How frequently do the fuel injectors in my Mercury Marquis need to be cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your 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 performs Mercury Marquis tune-ups? When your 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.

1984 Mercury Marquis Maintenance

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 Marquis.

Repairs on Your 1984 Mercury Marquis

Your Mercury 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 1984 Mercury Marquis repairs below.