Why does my Sierra 2500 HD’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your Sierra 2500 HD firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my GMC Sierra 2500 HD making engine noise?

Unusual noises can signal a problem with your GMC Sierra 2500 HD engine. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC Sierra 2500 HD engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Can I add water to my GMC Sierra 2500 HD radiator?

It’s not recommended you put water in your Sierra 2500 HD radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

Why did my Sierra 2500 HD engine suddenly stop?

Reasons your Sierra 2500 HD car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who can repair my GMC Sierra 2500 HD engine?

Your local Firestone Complete Auto Care has you covered with expert Sierra 2500 HD engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 2024 GMC Sierra 2500 HD

Learn about

2024 GMC Sierra 2500 HD Trim Options

Select your GMC Sierra 2500 HD trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

Repairs for Your 2024 GMC Sierra 2500 HD

Stuff wears out. Even your GMC Sierra 2500 HD’s engine parts and components will change. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 2024 GMC Sierra 2500 HD.

We’re Trained to Care for GMC Sierra 2500 HD Engines

The GMC Sierra 2500 HD is respected for its reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Things can go wrong on the road. When they do, you might find yourself searching for 2024 GMC Sierra 2500 HD engine repair or replacement parts. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know GMC Sierra 2500 HD engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Illuminated Check Engine Light on 2024 GMC Sierra 2500 HD

As soon as your Sierra 2500 HD check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your or emission control system that won’t go away on its own. Possible causes can include a failing oxygen sensor, bad spark plug, a clogged catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your Sierra 2500 HD to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. Other signs it's time for GMC Sierra 2500 HD engine service might include burning smells, or a sinking feeling that something’s wrong.

GMC Sierra 2500 HD Engine Repair

When your GMC Sierra 2500 HD engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. If it's necessary for your safety, we'll make sure you understand that, too. We want to give you all the details you need to make an informed decision about your engine repairs. Turn to Firestone Complete Auto Care for your 2024 Sierra 2500 HD engine repairs and you can feel confident knowing that we use GMC-approved parts and components like the serpentine belt, valve guide seal, fuses, or a different component.

Questions About 2024 GMC Sierra 2500 HD Engines

Why does my Sierra 2500 HD’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your Sierra 2500 HD firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my GMC Sierra 2500 HD making engine noise? Unusual noises can signal a problem with your GMC Sierra 2500 HD engine. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC Sierra 2500 HD engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Can I add water to my GMC Sierra 2500 HD radiator? It’s not recommended you put water in your Sierra 2500 HD radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
Why did my Sierra 2500 HD engine suddenly stop? Reasons your Sierra 2500 HD car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who can repair my GMC Sierra 2500 HD engine? Your local Firestone Complete Auto Care has you covered with expert Sierra 2500 HD engine repair. Schedule an appointment today and see us at one of our thousands of locations.