Why does the check engine light come on when I start my K2500?

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why does my GMC engine sound different?

Unusual noises can signal a problem with your GMC K2500 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 may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC K2500 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my GMC K2500 radiator?

While it’s not recommended, you can use water in your K2500 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

Why did my K2500 engine suddenly stop?

Reasons your K2500 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 K2500 engine?

For GMC K2500 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.

Engine Repairs for Your 1999 GMC K2500

Learn about

1999 GMC K2500 Trim Options

Select your GMC K2500 trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

V8/5.7L

V8/6.5L

V8/7.4L

Repairs for Your 1999 GMC K2500

Nothing lasts forever. Even your GMC K2500’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1999 GMC K2500 services.

We Know GMC K2500 Engines

GMC K2500 engines are known for their reliability. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1999 GMC service center — quick! 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 K2500 engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. 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 1999 GMC K2500

An illuminated check engine light on your GMC K2500 is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your vehicle's ignition, Possible causes can include a failing oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Bring your K2500 to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. Other signs your GMC K2500 engine needs some TLC are oil leaks, or a sinking feeling that something’s wrong.

1999 K2500 Engine Services

When your GMC K2500 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure 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. By choosing Firestone Complete Auto Care for K2500 engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the cambelt, oil gasket, ignition coil, or a different component.

1999 GMC K2500 Engine Q&A

Why does the check engine light come on when I start my K2500? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my GMC engine sound different? Unusual noises can signal a problem with your GMC K2500 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 may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC K2500 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my GMC K2500 radiator? While it’s not recommended, you can use water in your K2500 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
Why did my K2500 engine suddenly stop? Reasons your K2500 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 K2500 engine? For GMC K2500 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.