When should GMC Sierra 3500 HD 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 do I do if I see a pool of liquid under my GMC Sierra 3500 HD?

Don't ignore puddles of fluid under your GMC Sierra 3500 HD. 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.

Are some driving habits better for my GMC Sierra 3500 HD engine than others?

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 have a GMC Sierra 3500 HD tune-up done?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair GMC Sierra 3500 HDs.

How often do GMC Sierra 3500 HD fuel injectors need to be 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 does GMC Sierra 3500 HD tune-ups?

Visit your nearby Firestone Complete Auto Care for GMC Sierra 3500 HD tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Engine Tune-Up Service for Your 2020 GMC Sierra 3500 HD

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Schedule an Appointment for Your GMC Sierra 3500 HD Tune-Up

If your Sierra 3500 HD 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.

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Tune Into Your GMC Sierra 3500 HD

Is it time for an engine tune-up? If you're the type of driver who waits for something to go wrong with your vehicle, it might be time to change your ways, particularly if you want to keep your 2020 GMC Sierra 3500 HD in tip-top shape. Periodic tune-ups can bring more power back to your Sierra 3500 HD’s engine. Tune-ups give your engine a boost in efficiency, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you follow the guidelines specified by GMC for your vehicle’s tune-up schedule, you can rest assured you’re investing in your Sierra 3500 HD’s long-term engine performance.

Engine Tune-Up for GMC Sierra 3500 HD

The Firestone Complete Auto Care location in your community offers several GMC Sierra 3500 HD engine tune-up services. The standard Firestone Tune-Up is one service option. This includes the installation of new spark plugs and a visual inspection of your engine’s components, plus a lifetime warranty on parts*. A second service option replaces the air and fuel filter in your Sierra 3500 HD. 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 Sierra 3500 HD. The result? Restored fuel system performance. Here’s something to remember when choosing services: the mileage and service history of your Sierra 3500 HD can determine what kind of service it needs. If you’re not sure what services are the best fit for your car, let us help! 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 GMC Sierra 3500 HD Tune-Up

If you’re looking for 2020 Sierra 3500 HD engine tune-up services, head to Firestone Complete Auto Care. Follow GMC's recommended maintenance schedule or book an appointment as soon as you notice one of the following: stalling or shaky idling when you’re stopped, diminished 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 2020 GMC Sierra 3500 HDs

When should GMC Sierra 3500 HD 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 do I do if I see a pool of liquid under my GMC Sierra 3500 HD? Don't ignore puddles of fluid under your GMC Sierra 3500 HD. 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.
Are some driving habits better for my GMC Sierra 3500 HD engine than others? 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 have a GMC Sierra 3500 HD tune-up done? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair GMC Sierra 3500 HDs.
How often do GMC Sierra 3500 HD fuel injectors need to be 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 does GMC Sierra 3500 HD tune-ups? Visit your nearby Firestone Complete Auto Care for GMC Sierra 3500 HD tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Proactive Maintenance - 2020 GMC Sierra 3500 HD

Take care of your vehicle and it'll take care of you. Click on a service below to learn more about properly maintaining your GMC Sierra 3500 HD.

Repair Service for Your 2020 GMC Sierra 3500 HD

Your GMC Sierra 3500 HD 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 2020 GMC Sierra 3500 HD repairs below.