Will it hurt my GMC Sierra 3500 HD 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 should I do if I see leaks under my Sierra 3500 HD?

Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.

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

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 GMC Sierra 3500 HD tune-up?

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your GMC Sierra 3500 HD.

How frequently do I need to get my GMC Sierra 3500 HD 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 does GMC Sierra 3500 HD tune-ups?

Visit your local Firestone Complete Auto Care for your GMC Sierra 3500 HD tune-up. Make an appointment online and view our latest offers to save big.

2021 GMC Sierra 3500 HD Tune-Up & Engine Service

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

Tune in to tune up. Listen to your Sierra 3500 HD and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

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Tune Into Your GMC Sierra 3500 HD

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, especially if you want your 2021 GMC Sierra 3500 HD’s engine to last for a long time. Routine engine tune-ups can bring power back to your Sierra 3500 HD. 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 Sierra 3500 HD’s engine running smoother, longer.

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

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to GMC Sierra 3500 HD engine tune-up services. The standard Firestone Tune-Up is one service option. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. A second service option replaces the air and fuel filter in your Sierra 3500 HD. 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 Sierra 3500 HD'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 Sierra 3500 HD'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. 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 GMC Sierra 3500 HD

If you’re looking for 2021 Sierra 3500 HD engine tune-up services, head to 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: 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.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

Questions About 2021 GMC Sierra 3500 HD Engine Tune-Ups

Will it hurt my GMC Sierra 3500 HD 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 should I do if I see leaks under my Sierra 3500 HD? Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.
Are some driving habits better for my GMC Sierra 3500 HD engine than others? 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 GMC Sierra 3500 HD tune-up? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your GMC Sierra 3500 HD.
How frequently do I need to get my GMC Sierra 3500 HD 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 does GMC Sierra 3500 HD tune-ups? Visit your local Firestone Complete Auto Care for your GMC Sierra 3500 HD tune-up. Make an appointment online and view our latest offers to save big.

2021 GMC Sierra 3500 HD Maintenance

We know it’s not just a car, it’s your car. We’ll help you properly maintain your GMC Sierra 3500 HD to keep it on the road and running smoothly. Learn more about maintenance below.

Repairs on Your 2021 GMC Sierra 3500 HD

Your car takes care of you, and we’ll take care of your car. When it’s time for a repair on your GMC Sierra 3500 HD, we’re here to help. Check out more info below about 2021 GMC Sierra 3500 HD repairs.