Will it hurt my Mitsubishi Diamante 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 Mitsubishi’s recommendations.

What do I do if I see a pool of liquid under my Mitsubishi Diamante?

Don't ignore puddles of fluid under your Mitsubishi Diamante. 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 Mitsubishi Diamante engine than others?

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 have a Mitsubishi Diamante tune-up done?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Mitsubishi Diamante service, maintenance, and repairs.

How frequently do the fuel injectors in my Mitsubishi Diamante need to be cleaned?

There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.

Who performs Mitsubishi Diamante tune-ups?

Visit your local Firestone Complete Auto Care for your Mitsubishi Diamante tune-up. Make an appointment online and view our latest offers to save big.

Engine Tune-Up Service for Your 1998 Mitsubishi Diamante

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Schedule an Appointment for Your Mitsubishi Diamante Tune-Up

If your Diamante 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.

Schedule an Appointment

Tune Into Your Mitsubishi Diamante

Is it tune-up time? If you're the type of driver who waits for something to go wrong with your vehicle, it might be time to change your ways, particularly if you want to keep your 1998 Mitsubishi Diamante in tip-top shape. Regular engine tune-ups can optimize your Diamante’s power on the road. Tune-ups give your engine a boost in efficiency, so you can enjoy improved fuel economy and lower emissions. When you take your car for regular engine tune-ups as recommended by Mitsubishi, you can rest assured you’re investing in your Diamante’s long-term engine performance.

Engine Tune-Up for Mitsubishi Diamante

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 1998 Mitsubishi Diamante. One option 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*. The second service focuses on your Diamante'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 Diamante’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 Diamante 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! Ask one of our technicians what your vehicle needs, based on your driving habits and your car’s current condition.

Where to Get a Tune-Up for Your Mitsubishi Diamante

Come to Firestone Complete Auto Care for your next 1998 Diamante engine tune-up. Not sure when you’re due for a tune-up? Use Mitsubishi’s recommended maintenance schedule as a reference point, or schedule an appointment ASAP if you notice any of these signs: decreased gas mileage, "rough" idling or stalling when stopped, knocking noises in the engine, or a lit up check engine light on your dashboard.

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

1998 Mitsubishi Diamante Engine Tune-Up Q&A

Will it hurt my Mitsubishi Diamante 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 Mitsubishi’s recommendations.
What do I do if I see a pool of liquid under my Mitsubishi Diamante? Don't ignore puddles of fluid under your Mitsubishi Diamante. 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 Mitsubishi Diamante engine than others? 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 have a Mitsubishi Diamante tune-up done? At your closest Firestone Complete Auto Care! Our experienced technicians offer Mitsubishi Diamante service, maintenance, and repairs.
How frequently do the fuel injectors in my Mitsubishi Diamante need to be cleaned? There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.
Who performs Mitsubishi Diamante tune-ups? Visit your local Firestone Complete Auto Care for your Mitsubishi Diamante tune-up. Make an appointment online and view our latest offers to save big.

Proactive Maintenance - 1998 Mitsubishi Diamante

Take care of your vehicle and it'll take care of you. Click on a service below to learn more about properly maintaining your Mitsubishi Diamante.

Repairs on Your 1998 Mitsubishi Diamante

Your Mitsubishi Diamante 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 1998 Mitsubishi Diamante repairs below.