2003 Jeep Grand Cherokee Engine Tune-Ups & Maintenance

Enhance Jeep Grand Cherokee Performance with a Tune-Up

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, it could be time for a new way of doing things, especially if you drive a 2003 Jeep Grand Cherokee. Periodic tune-ups can bring more power back to your Grand Cherokee’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 follow the guidelines specified by Jeep for your vehicle’s tune-up schedule, you invest in your Grand Cherokee's long-term health and engine performance.

Routine Engine Tune-Up Service for Your Jeep Grand Cherokee

The Firestone Complete Auto Care location in your community offers several Jeep Grand Cherokee 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*. A second service option replaces the air and fuel filter in your Grand Cherokee. 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 Grand Cherokee’s fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Keep in mind that your Grand Cherokee'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. Ask one of our technicians what your vehicle needs, based on your driving habits and your car’s current condition.

Where to Get a Jeep Grand Cherokee Tune-Up

Schedule your next 2003 Grand Cherokee engine tune-up service at Firestone Complete Auto Care. Follow Jeep's recommended maintenance schedule or book an appointment as soon as you notice one of the following: stalling or shaky idling when you’re stopped, diminished fuel economy, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

Questions About 2003 Jeep Grand Cherokee Engine Tune-Ups

  • Will it hurt my Jeep Grand Cherokee to drive with old spark plugs? 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 Jeep Grand Cherokee? 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 some driving habits better for my Jeep Grand Cherokee 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.

Maintenance for Your 2003 Jeep Grand Cherokee

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

Repairs on Your 2003 Jeep Grand Cherokee

Your Jeep Grand Cherokee 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 2003 Jeep Grand Cherokee repairs below.

Schedule Jeep Grand Cherokee Tune-Up

If your Grand Cherokee 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.