When should Jeep Grand Wagoneer spark plugs be replaced?

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 Jeep Grand Wagoneer mean?

Don't ignore puddles of fluid under your Jeep Grand Wagoneer. 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 Wagoneer 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 get a Jeep Grand Wagoneer tune-up?

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

How often should I clean my Jeep Grand Wagoneer 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 offers Jeep Grand Wagoneer tune-ups?

When your Grand Wagoneer needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

1991 Jeep Grand Wagoneer Engine Tune-Ups & Maintenance

Get a Tune-Up

Schedule Your Jeep Grand Wagoneer Tune-Up Service Appointment

If your Grand Wagoneer 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.

Schedule an Appointment

Enhance Jeep Grand Wagoneer Performance with a Tune-Up

Is it tune-up time? If you tend to ignore your car until something goes wrong, it could be time for a new way of doing things, particularly if you want to keep your 1991 Jeep Grand Wagoneer in tip-top shape. Routine engine tune-ups can bring power back to your Grand Wagoneer. Tune-ups help your engine start smoothly and run efficiently, so you can enjoy improved fuel economy and lower emissions. When you get routine engine tune-ups based on Jeep's recommendations, you invest in your Grand Wagoneer's long-term health and engine performance.

Jeep Grand Wagoneer Engine Tune-Up Services

The Firestone Complete Auto Care location in your community offers several Jeep Grand Wagoneer engine tune-up services. 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*. The second service focuses on your Grand Wagoneer'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 Grand Wagoneer’s fuel injectors, throttle body, and throttle plate. This can improve your fuel system’s performance (and therefore, your engine’s performance). Here’s something to remember when choosing services: the mileage and service history of your Grand Wagoneer 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 Jeep Grand Wagoneer Tune-Up

Schedule your next 1991 Grand Wagoneer engine tune-up service at Firestone Complete Auto Care. 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: 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 1991 Jeep Grand Wagoneer Engine Tune-Ups

When should Jeep Grand Wagoneer spark plugs be replaced? 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 Jeep Grand Wagoneer mean? Don't ignore puddles of fluid under your Jeep Grand Wagoneer. 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 Wagoneer 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 get a Jeep Grand Wagoneer tune-up? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Jeep Grand Wagoneer.
How often should I clean my Jeep Grand Wagoneer 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 offers Jeep Grand Wagoneer tune-ups? When your Grand Wagoneer needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

Maintenance for Your 1991 Jeep Grand Wagoneer

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 Wagoneer.

Repair Service for Your 1991 Jeep Grand Wagoneer

Your Jeep Grand Wagoneer 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 1991 Jeep Grand Wagoneer repairs below.