Why does the check engine light come on when I start my Sierra 3500 HD?

It's okay if your check engine light comes on when you first start your vehicle. This is just your Sierra 3500 HD testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are GMC Sierra 3500 HD engine noises bad?

Strange under-the-hood noises can point to problems within your GMC Sierra 3500 HD engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my GMC Sierra 3500 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I put water in my GMC Sierra 3500 HD radiator?

It’s not recommended you put water in your Sierra 3500 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 3500 HD engine suddenly stop?

If your Sierra 3500 HD car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Where can I go for GMC Sierra 3500 HD repair?

Your local Firestone Complete Auto Care fixes GMC Sierra 3500 HD engines. Book an appointment today! We have thousands of locations across the country.

Reliable Repairs for 2019 GMC Sierra 3500 HD Engines

Learn about

2019 GMC Sierra 3500 HD Trim Options

Select your GMC Sierra 3500 HD trim level to learn more about GMC-recommended engine repair. Even GMC Sierra 3500 HD parts will get older and change.

V8/6.0L

V8/6.6L

2019 GMC Sierra 3500 HD Repair

Nothing lasts forever. Even your GMC Sierra 3500 HD's many parts and pieces. When something breaks, we're ready. Select a repair or category to learn more about 2019 GMC Sierra 3500 HD services.

We Know GMC Sierra 3500 HD Engines

The GMC Sierra 3500 HD is respected for its reliability. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. If they do, you’ll have to find a dependable 2019 GMC service center — quick! That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service GMC Sierra 3500 HD engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Illuminated Check Engine Light on 2019 GMC Sierra 3500 HD

As soon as your Sierra 3500 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 vehicle's ignition, Possible causes can include a failing oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Stop by your local Firestone Complete Auto Care to get your Sierra 3500 HD issues diagnosed and we'll determine exactly why your check engine light is on. rattling sounds, burning smells, or a sinking feeling that something’s wrong.

2019 Sierra 3500 HD Engine Services

When your GMC Sierra 3500 HD engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. We want to give you all the details you need to make an informed decision about your engine repairs. By choosing Firestone Complete Auto Care for Sierra 3500 HD engine repairs and you can drive easy knowing that we use GMC-approved parts and fluids — timing chain or belt, oil gasket, fuses, or a different component.

Engine Q&A 2019 GMC Sierra 3500 HD

Why does the check engine light come on when I start my Sierra 3500 HD? It's okay if your check engine light comes on when you first start your vehicle. This is just your Sierra 3500 HD testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are GMC Sierra 3500 HD engine noises bad? Strange under-the-hood noises can point to problems within your GMC Sierra 3500 HD engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my GMC Sierra 3500 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I put water in my GMC Sierra 3500 HD radiator? It’s not recommended you put water in your Sierra 3500 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 3500 HD engine suddenly stop? If your Sierra 3500 HD car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Where can I go for GMC Sierra 3500 HD repair? Your local Firestone Complete Auto Care fixes GMC Sierra 3500 HD engines. Book an appointment today! We have thousands of locations across the country.