Why does my C2500’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 C2500 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are GMC C2500 engine noises bad?

Strange under-the-hood noises can point to problems within your GMC C2500 engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by 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 C2500 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still 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 add water to my GMC C2500 radiator?

It’s not recommended you put water in your C2500 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 C2500 engine suddenly stop?

If your C2500 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who fixes GMC C2500 engines?

For GMC C2500 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.

Reliable Repairs for 1989 GMC C2500 Engines

Learn about

1989 GMC C2500 Trim Options

Select your GMC C2500 trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

V6/4.3L

V8/5.0L

V8/5.7L

V8/6.2L

1989 GMC C2500 Repair

Stuff wears out. Even your GMC C2500’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 1989 GMC C2500 services.

We’re Trained to Care for GMC C2500 Engines

GMC C2500 drivers trust that their C2500 will take them near and far. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. If they do, you’ll have to find a dependable 1989 GMC service center — quick! That's when it's time to head to Firestone Complete Auto Care. We've serviced more than 500 million vehicles since 1926, and our technicians know GMC C2500 engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 1989 GMC C2500 Check Engine Light Is On

An illuminated check engine light on your GMC C2500 is one of the first signs it's time to 'brake' for engine service. A steady or flashing check engine light could signal a serious issue with your car’s starter, Potential causes may include a faulty oxygen sensor, damaged spark plug, issues with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your C2500 in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs your GMC C2500 engine needs some TLC are burning smells, or a sinking feeling that something’s wrong.

Engine Repairs for Your 1989 C2500

If your 1989 C2500 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 repair can wait, we'll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for C2500 engine repairs and you can drive easy knowing that we use GMC-approved parts and fluids — timing belt, valve guide seal, ignition coil, or other parts.

Questions About 1989 GMC C2500 Engines

Why does my C2500’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 C2500 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are GMC C2500 engine noises bad? Strange under-the-hood noises can point to problems within your GMC C2500 engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by 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 C2500 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still 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 add water to my GMC C2500 radiator? It’s not recommended you put water in your C2500 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 C2500 engine suddenly stop? If your C2500 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who fixes GMC C2500 engines? For GMC C2500 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.