2003 Infiniti I35 Tune-Up & Engine Service

Tune-Ups to Help Your Infiniti I35 Run Better

Is it time for an engine tune-up? If you're the type of driver who waits for something to go wrong with your vehicle, now is the time to work on that habit, especially if you drive a 2003 Infiniti I35. Periodic tune-ups can bring more power back to your I35’s engine. Tune-ups give your engine a boost in efficiency, which can lead to lower emission levels and better fuel economy. When you follow the guidelines specified by Infiniti for your vehicle’s tune-up schedule, you’re taking vital steps toward keeping your I35’s engine running smoother, longer.

Infiniti I35 Engine Tune-Up Services

The Firestone Complete Auto Care location in your community offers several Infiniti I35 engine tune-up services. 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 I35'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 I35’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 I35 can determine what kind of service it needs. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. 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 I35 Tune-Up

If you’re looking for 2003 I35 engine tune-up services, head to Firestone Complete Auto Care. Not sure when you’re due for a tune-up? Use Infiniti’s recommended maintenance schedule as a reference point, or schedule an appointment ASAP if you notice any of these signs: stalling or shaky idling when you’re stopped, diminished fuel economy, engine knocking, or an illuminated check engine light.

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

2003 Infiniti I35 Engine Tune-Up Q&A

  • What happens if my Infiniti I35 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 does a puddle underneath my Infiniti I35 mean? 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 Infiniti I35 engine? 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.

Maintenance for Your 2003 Infiniti I35

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 I35.

2003 Infiniti I35 Repair

Nothing lasts forever. Even your Infiniti I35's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2003 Infiniti I35 repairs.

Schedule Infiniti I35 Tune-Up

If your I35 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.