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

It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Chevrolet Silverado 3500 HD engine noises bad?

Strange under-the-hood noises can point to problems within your Chevrolet Silverado 3500 HD engine. Knocking or tapping could be a symptom of low 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 could be a sign that something is wrong with your brakes — not the engine.

What could damage my Chevrolet Silverado 3500 HD engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my Chevrolet Silverado 3500 HD radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

Why did my Silverado 3500 HD engine suddenly stop?

If your Silverado 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 Chevrolet Silverado 3500 HD repair?

For Chevrolet Silverado 3500 HD engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

2021 Chevrolet Silverado 3500 HD Engine Repair

Learn about

2021 Chevrolet Silverado 3500 HD Trim Options

Select your Chevrolet Silverado 3500 HD trim level to learn more about Chevrolet-recommended engine repair. Use the following chart to find information.

V8/6.6L

2021 Chevrolet Silverado 3500 HD Repair

Nothing stays the same forever. Even your Chevrolet Silverado 3500 HD's many parts and pieces. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 2021 Chevrolet Silverado 3500 HD.

We Care for Chevrolet Silverado 3500 HD Engines

The Chevrolet Silverado 3500 HD is respected for its reliability. That might be why you bought it in the first place. However, even your trustworthy engine is subject to wear and tear. Things can go sideways sometimes. If they do, you’ll have to find a dependable 2021 Chevrolet service center — quick! That’s where Firestone Complete Auto Care comes in. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Chevrolet Silverado 3500 HD engine will be in good hands. Schedule an appointment if you're experiencing problems that could require engine repair. 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 2021 Chevrolet Silverado 3500 HD

If your Silverado 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 injection, Causes may include a faulty oxygen sensor, bad spark plug, issues with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your Silverado 3500 HD in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine pinging noises, essential fluid leaks, or engine misfiring.

2021 Silverado 3500 HD Engine Services

If your 2021 Chevrolet Silverado 3500 HD needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2021 Silverado 3500 HD engine repairs and you can feel confident knowing that we use Chevrolet-approved parts and components like the cambelt, valve guide seal, ignition coil, or another part.

Questions About 2021 Chevrolet Silverado 3500 HD Engines

Why does the check engine light in my Silverado 3500 HD turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Chevrolet Silverado 3500 HD engine noises bad? Strange under-the-hood noises can point to problems within your Chevrolet Silverado 3500 HD engine. Knocking or tapping could be a symptom of low 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 could be a sign that something is wrong with your brakes — not the engine.
What could damage my Chevrolet Silverado 3500 HD engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my Chevrolet Silverado 3500 HD radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
Why did my Silverado 3500 HD engine suddenly stop? If your Silverado 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 Chevrolet Silverado 3500 HD repair? For Chevrolet Silverado 3500 HD engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.