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. 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 Jeep’s recommendations.

What does a puddle underneath my Jeep Grand Cherokee mean?

Don't ignore puddles of fluid under your Jeep Grand Cherokee. 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.

What do hard starts and stops do to my Grand Cherokee 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.

Where can I have a Jeep Grand Cherokee tune-up done?

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Jeep Grand Cherokee.

How often should I clean my Jeep Grand Cherokee fuel injectors?

The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.

Who performs Jeep Grand Cherokee tune-ups?

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

1999 Jeep Grand Cherokee Tune-Up & Engine Service

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Schedule Your Jeep Grand Cherokee Tune-Up Service Appointment

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

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Tune Into Your Jeep Grand Cherokee

Is your engine overdue for a tune-up? If you usually wait until your car has an issue to take it in for service, now is the time to work on that habit, especially if you drive a 1999 Jeep Grand Cherokee. Periodic tune-ups can bring more power back to your Grand Cherokee’s engine. Tune-ups help your engine start smoothly and run efficiently, which can lead to lower emission levels and better fuel economy. When you get routine engine tune-ups based on Jeep's recommendations, you can rest assured you’re investing in your Grand Cherokee’s long-term engine performance.

Jeep Grand Cherokee Engine Tune-Up Services

The Firestone Complete Auto Care location in your community offers several Jeep Grand Cherokee engine tune-up services. The standard Firestone Tune-Up is one service option. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. Another service option pays special attention to the filters in your Grand Cherokee. Specifically, we replace the fuel filter and air filter. Yet another service is a fuel system cleaning process, which involves removing varnish, dirt, and carbon deposits that have built up inside the fuel injectors, throttle body, and throttle plate in your Grand Cherokee. This goes a long way in boosting your fuel system’s overall 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. Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where to Get a Tune-Up for Your Jeep Grand Cherokee

Come to Firestone Complete Auto Care for your next 1999 Grand Cherokee engine tune-up. Not sure when you’re due for a tune-up? Use Jeep’s recommended maintenance schedule as a reference point, or schedule an appointment ASAP if you notice any of these signs: shaking while the engine is idling, poor fuel economy, 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 1999 Jeep Grand Cherokees

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. 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 Jeep’s recommendations.
What does a puddle underneath my Jeep Grand Cherokee mean? Don't ignore puddles of fluid under your Jeep Grand Cherokee. 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.
What do hard starts and stops do to my Grand Cherokee 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.
Where can I have a Jeep Grand Cherokee tune-up done? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Jeep Grand Cherokee.
How often should I clean my Jeep Grand Cherokee fuel injectors? The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.
Who performs Jeep Grand Cherokee tune-ups? Visit your local Firestone Complete Auto Care for your Jeep Grand Cherokee tune-up. Make an appointment online and view our latest offers to save big.

1999 Jeep Grand Cherokee Maintenance

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Jeep Grand Cherokee to keep it on the road and running smoothly. Learn more about maintenance below.

Repair Service for Your 1999 Jeep Grand Cherokee

Nothing lasts forever. Even your Jeep Grand Cherokee's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 1999 Jeep Grand Cherokee repairs.