When should GMC C3500 spark plugs be replaced?

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 GMC’s recommendations.

What should I do if I see leaks under my C3500?

Don't ignore puddles of fluid under your GMC C3500. 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 C3500 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 GMC C3500?

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your GMC C3500.

How often should I clean my GMC C3500 fuel injectors?

There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.

Who performs GMC C3500 tune-ups?

Your local Firestone Complete Auto Care is happy to help with your GMC C3500 tune-up. Visit us online to see our latest offers and book an appointment.

Engine Tune-Up Service for Your 1998 GMC C3500

Get a Tune-Up

Schedule an Appointment for Your GMC C3500 Tune-Up

Keep your C3500 running newer, longer. Schedule an engine tune-up as soon as you notice your engine running differently. Make your appointment today.

Schedule an Appointment

Tune Into Your GMC C3500

Is it tune-up time? 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 1998 GMC C3500. Periodic tune-ups can bring more power back to your C3500’s engine. Tune-ups give your engine a boost in efficiency, which can lead to lower emission levels and better fuel economy. When you take your car for regular engine tune-ups as recommended by GMC, you invest in your C3500's long-term health and engine performance.

Routine Engine Tune-Up Service for Your GMC C3500

The Firestone Complete Auto Care location in your community offers several GMC C3500 engine tune-up services. The standard Firestone Tune-Up is one service option. The standard Firestone Tune-Up includes new spark plugs (and installation!), a thorough inspection of engine components, and a lifetime parts warranty*. Another service option pays special attention to the filters in your C3500. Specifically, we replace the fuel filter and air 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 C3500’s fuel injectors, throttle body, and throttle plate. This goes a long way in boosting your fuel system’s overall performance. Keep in mind that your C3500's mileage and maintenance history can uniquely impact its tune-up needs. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. 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 GMC C3500 Tune-Up

Schedule your next 1998 C3500 engine tune-up service at Firestone Complete Auto Care. Not sure when you’re due for a tune-up? Use GMC’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, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

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

1998 GMC C3500 Engine Tune-Up Q&A

When should GMC C3500 spark plugs be replaced? 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 GMC’s recommendations.
What should I do if I see leaks under my C3500? Don't ignore puddles of fluid under your GMC C3500. 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 C3500 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 GMC C3500? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your GMC C3500.
How often should I clean my GMC C3500 fuel injectors? There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.
Who performs GMC C3500 tune-ups? Your local Firestone Complete Auto Care is happy to help with your GMC C3500 tune-up. Visit us online to see our latest offers and book an appointment.

Maintenance for Your 1998 GMC C3500

We know it’s not just a car, it’s your car. We’ll help you properly maintain your GMC C3500 to keep it on the road and running smoothly. Learn more about maintenance below.

Repair Service for Your 1998 GMC C3500

Your GMC C3500 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 1998 GMC C3500 repairs below.