What happens if my Infiniti M45 spark plugs fail?

Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.

What do I do if I see a pool of liquid under my Infiniti M45?

Don't ignore puddles of fluid under your Infiniti M45. 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 Infiniti M45 engine than others?

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 Infiniti M45?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Infiniti M45 service, maintenance, and repairs.

How often do Infiniti M45 fuel injectors need to be cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your M45 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 Infiniti M45 tune-ups?

Visit your nearby Firestone Complete Auto Care for Infiniti M45 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Engine Tune-Up Service for Your 2003 Infiniti M45

Get a Tune-Up

Schedule Your Infiniti M45 Tune-Up Service Appointment

Tune in to tune up. Listen to your M45 and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

Schedule an Appointment

Tune Into Your Infiniti M45

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 2003 Infiniti M45. Regular engine tune-ups can optimize your M45’s power on the road. Tune-ups help your engine start smoothly and run 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 Infiniti, you invest in your M45's long-term health and engine performance.

Infiniti M45 Engine Tune-Up Services

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Infiniti M45 engine tune-up services. The first is the standard Firestone Tune-Up. The standard Firestone Tune-Up includes new spark plugs (and installation!), a thorough inspection of engine components, and a lifetime parts warranty*. Another service option pays special attention to the filters in your M45. Specifically, we replace the fuel filter and air filter. 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 M45'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 M45 can determine what kind of service it 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 Infiniti M45 Tune-Up

Schedule your next 2003 M45 engine tune-up service at Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from Infiniti, or make a service appointment if you notice any of these symptoms from your engine: decreased gas mileage, "rough" idling or stalling when stopped, engine knocking, or an illuminated check engine light.

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

Common Engine Tune-Up Q&A For 2003 Infiniti M45s

What happens if my Infiniti M45 spark plugs fail? Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.
What do I do if I see a pool of liquid under my Infiniti M45? Don't ignore puddles of fluid under your Infiniti M45. 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 Infiniti M45 engine than others? 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 Infiniti M45? At your closest Firestone Complete Auto Care! Our experienced technicians offer Infiniti M45 service, maintenance, and repairs.
How often do Infiniti M45 fuel injectors need to be cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your M45 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 Infiniti M45 tune-ups? Visit your nearby Firestone Complete Auto Care for Infiniti M45 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Maintenance for Your 2003 Infiniti M45

Stay ahead of any potential issues with your Infiniti M45 so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

Repair Service for Your 2003 Infiniti M45

Nothing lasts forever. Even your Infiniti M45's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2003 Infiniti M45 repairs.