Will it hurt my GMC C3500 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 GMC’s recommendations.

What do I do if I see a pool of liquid under my GMC 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?

Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.

Where can I get a tune-up for my GMC C3500?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair GMC C3500s.

How frequently do I need to get my GMC C3500 fuel injectors cleaned?

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 can I go to for 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.

1990 GMC C3500 Tune-Up & Engine Service

Get a Tune-Up

Schedule Your GMC C3500 Tune-Up Service Appointment

If your C3500 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

Tune Into Your GMC C3500

Is it time for an engine tune-up? If you tend to ignore your car until something goes wrong, now is the time to work on that habit, especially if you drive a 1990 GMC C3500. Routine engine tune-ups can bring power back to your C3500. 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 take your car for regular engine tune-ups as recommended by GMC, you’re taking vital steps toward keeping your C3500’s engine running smoother, longer.

Routine Engine Tune-Up Service for Your GMC C3500

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 1990 GMC C3500. The first 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*. Another service option pays special attention to the filters in your C3500. Specifically, we replace the fuel filter and air filter. The third tune-up option is a fuel system cleaning service, which is a three-step process that removes varnish, dirt, and carbon deposits on your C3500'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 C3500 can determine what kind of service it 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 GMC C3500

Schedule your next 1990 C3500 engine tune-up service at Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from GMC, 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, engine knocking, or an illuminated check engine light.

*Check with a teammate at Firestone Complete Auto Care for complete terms and conditions regarding warranties.

1990 GMC C3500 Engine Tune-Up Q&A

Will it hurt my GMC C3500 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 GMC’s recommendations.
What do I do if I see a pool of liquid under my GMC 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? Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.
Where can I get a tune-up for my GMC C3500? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair GMC C3500s.
How frequently do I need to get my GMC C3500 fuel injectors cleaned? 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 can I go to for 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.

1990 GMC C3500 Maintenance

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.

1990 GMC C3500 Repair

Your car takes care of you, and we’ll take care of your car. When it’s time for a repair on your GMC C3500, we’re here to help. Check out more info below about 1990 GMC C3500 repairs.