Will it hurt my Plymouth Conquest 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 Plymouth’s recommendations.

What do I do if I see a pool of liquid under my Plymouth Conquest?

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 Plymouth Conquest 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 have a Plymouth Conquest tune-up done?

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

How often should I clean my Plymouth Conquest fuel injectors?

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

When your Conquest 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 Plymouth Conquest Engine Tune-Ups & Maintenance

Get a Tune-Up

Schedule Plymouth Conquest Tune-Up

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

Schedule an Appointment

Tune Into Your Plymouth Conquest

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, particularly if you want to keep your 1985 Plymouth Conquest in tip-top shape. Periodic tune-ups can bring more power back to your Conquest’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 take your car for regular engine tune-ups as recommended by Plymouth, you’re taking vital steps toward keeping your Conquest’s engine running smoother, longer.

Routine Engine Tune-Up Service for Your Plymouth Conquest

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 1985 Plymouth Conquest. 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*. Another service option pays special attention to the filters in your Conquest. Specifically, we replace the fuel filter and air filter. Yet another service is a fuel system cleaning process, which involves removing varnish, dirt, and carbon deposits that have built up inside the fuel injectors, throttle body, and throttle plate in your Conquest. The result? Restored fuel system performance. Keep in mind that your Conquest'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. 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 Plymouth Conquest

If you’re looking for 1985 Conquest engine tune-up services, head to Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from Plymouth, or make a service appointment if you notice any of these symptoms from your engine: shaking while the engine is idling, poor fuel economy, engine knocking, or an illuminated check engine light.

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

1985 Plymouth Conquest Engine Tune-Up Q&A

Will it hurt my Plymouth Conquest 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 Plymouth’s recommendations.
What do I do if I see a pool of liquid under my Plymouth Conquest? 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 Plymouth Conquest 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 have a Plymouth Conquest tune-up done? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Plymouth Conquest.
How often should I clean my Plymouth Conquest fuel injectors? Factors like fuel type and driving conditions can affect how frequently you need to clean your Conquest 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 Plymouth Conquest tune-ups? When your Conquest 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 Plymouth Conquest Maintenance

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

Repairs on Your 1985 Plymouth Conquest

Your Plymouth Conquest 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 1985 Plymouth Conquest repairs below.