Why does the check engine light in my Sierra 3500 HD turn on when I start my car?

It’s usually normal for your check engine light to turn on upon ignition. This is just your Sierra 3500 HD testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why does my GMC engine sound different?

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. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my GMC Sierra 3500 HD engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Is it okay to put water in my GMC Sierra 3500 HD radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Sierra 3500 HD when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my Sierra 3500 HD engine suddenly stop?

Reasons your Sierra 3500 HD car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who fixes GMC Sierra 3500 HD engines?

Your local Firestone Complete Auto Care has you covered with expert Sierra 3500 HD engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 2009 GMC Sierra 3500 HD Engines

Learn about

2009 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

2009 GMC Sierra 3500 HD Repair

Nothing stays the same forever. Even your GMC Sierra 3500 HD's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 2009 GMC Sierra 3500 HD services.

We Know GMC Sierra 3500 HD Engines

GMC Sierra 3500 HD drivers trust that their Sierra 3500 HD will take them near and far. That might be why you bought it in the first place. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2009 GMC Sierra 3500 HD engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your GMC Sierra 3500 HD engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 2009 GMC Sierra 3500 HD

If your Sierra 3500 HD check engine light is on, it’s time to get it looked at. A check engine light that’s on or flashing could be a symptom of a serious problem in your fuel, Possible causes can include a failing oxygen sensor, damaged spark plug, a problem with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your Sierra 3500 HD in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs it's time for GMC Sierra 3500 HD engine service might include oil leaks, or misfiring.

Engine Repairs for Your 2009 Sierra 3500 HD

If your 2009 GMC Sierra 3500 HD needs engine repair, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. If a repair can wait, 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 2009 Sierra 3500 HD engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the timing belt, engine oil seal, fuses, or a different component.

Questions About 2009 GMC Sierra 3500 HD Engines

Why does the check engine light in my Sierra 3500 HD turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. This is just your Sierra 3500 HD testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why does my GMC engine sound different? 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. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my GMC Sierra 3500 HD engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Is it okay to put water in my GMC Sierra 3500 HD radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Sierra 3500 HD when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my Sierra 3500 HD engine suddenly stop? Reasons your Sierra 3500 HD car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes GMC Sierra 3500 HD engines? Your local Firestone Complete Auto Care has you covered with expert Sierra 3500 HD engine repair. Schedule an appointment today and see us at one of our thousands of locations.