Will it hurt my Jeep J20 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 do I do if I see a pool of liquid under my Jeep J20?

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 Jeep J20 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 tune-up for my Jeep J20?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Jeep J20s.

How often should I clean my Jeep J20 fuel injectors?

The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your Jeep owner’s manual for exact guidelines.

Who offers Jeep J20 tune-ups?

Visit your nearby Firestone Complete Auto Care for Jeep J20 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

1985 Jeep J20 Tune-Up & Engine Service

Get a Tune-Up

Schedule Jeep J20 Tune-Up

Keep your J20 running newer, longer. Schedule an engine tune-up as soon as you notice your engine running differently. Make your appointment today.

Schedule an Appointment

Enhance Jeep J20 Performance with a Tune-Up

Is it tune-up time? 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, particularly if you want to keep your 1985 Jeep J20 in tip-top shape. Regular engine tune-ups can optimize your J20’s power on the road. They're designed to help your engine start easier and run more efficiently, which can lead to lower emission levels and better fuel economy. When you follow the guidelines specified by Jeep for your vehicle’s tune-up schedule, you can rest assured you’re investing in your J20’s long-term engine performance.

Jeep J20 Engine Tune-Up Services

The Firestone Complete Auto Care location in your community offers several Jeep J20 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 J20'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 J20’s fuel injectors, throttle body, and throttle plate. This goes a long way in boosting your fuel system’s overall performance. Consider this when choosing a tune-up service for your J20: your vehicle’s maintenance record and mileage can determine which service is best. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. Ask one of our technicians what your vehicle needs, based on your driving habits and your car’s current condition.

Where to Get a Tune-Up for Your Jeep J20

If you’re looking for 1985 J20 engine tune-up services, head to Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from Jeep, or make a service appointment if you notice any of these symptoms from your engine: stalling or shaky idling when you’re stopped, diminished fuel economy, knocking noises in the engine, or a lit up check engine light on your dashboard.

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

1985 Jeep J20 Engine Tune-Up Q&A

Will it hurt my Jeep J20 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 do I do if I see a pool of liquid under my Jeep J20? 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 Jeep J20 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 tune-up for my Jeep J20? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Jeep J20s.
How often should I clean my Jeep J20 fuel injectors? The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your Jeep owner’s manual for exact guidelines.
Who offers Jeep J20 tune-ups? Visit your nearby Firestone Complete Auto Care for Jeep J20 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Proactive Maintenance - 1985 Jeep J20

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 J20.

1985 Jeep J20 Repair

Your Jeep J20 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 1985 Jeep J20 repairs below.