2003 Infiniti FX45 Engine Tune-Ups & Maintenance

Tune-Ups to Help Your Infiniti FX45 Run Better

Is your engine overdue for a tune-up? 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 2003 Infiniti FX45 in tip-top shape. Periodic tune-ups can bring more power back to your FX45’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 Infiniti, you invest in your FX45's long-term health and engine performance.

Engine Tune-Up for Infiniti FX45

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 2003 Infiniti FX45. One option 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*. Another service option pays special attention to the filters in your FX45. Specifically, we replace the fuel filter and air 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 FX45’s fuel injectors, throttle body, and throttle plate. This can improve your fuel system’s performance (and therefore, your engine’s performance). Keep in mind that your FX45's mileage and maintenance history can uniquely impact its tune-up needs. If you’re not sure what services are the best fit for your car, let us help! 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 FX45 Tune-Up

Come to Firestone Complete Auto Care for your next 2003 FX45 engine tune-up. Follow Infiniti's recommended maintenance schedule or book an appointment as soon as you notice one of the following: decreased gas mileage, "rough" idling or stalling when stopped, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

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

Common Engine Tune-Up Q&A For 2003 Infiniti FX45s

  • Will it hurt my Infiniti FX45 to drive with old spark plugs? 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 does a puddle underneath my Infiniti FX45 mean? 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 Infiniti FX45 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.

Proactive Maintenance - 2003 Infiniti FX45

Take care of your vehicle and it'll take care of you. Click on a service below to learn more about properly maintaining your Infiniti FX45.

Repairs on Your 2003 Infiniti FX45

Your car takes care of you, and we’ll take care of your car. When it’s time for a repair on your Infiniti FX45, we’re here to help. Check out more info below about 2003 Infiniti FX45 repairs.

Schedule an Appointment for Your Infiniti FX45 Tune-Up

Keep your FX45 running newer, longer. Schedule an engine tune-up as soon as you notice your engine running differently. Make your appointment today.