Why does my C2500’s check engine light come on when I start it?

It's okay if your check engine light comes on when you first start your vehicle. This is just your C2500 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 C2500 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal 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 GMC C2500 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 pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Is it okay to put water in 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.

What could cause my C2500 engine to 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 repairs 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 1999 GMC C2500 Engines

Learn about

1999 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.

V8/5.0L

V8/5.7L

V8/6.5L

V8/7.4L

GMC C2500 Repairs and Services

Stuff wears out. Even your GMC C2500’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 1999 GMC C2500 repairs.

We Know 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! Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 1999 GMC C2500 engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service GMC C2500 engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 1999 GMC C2500 Check Engine Light Is On

If your C2500 check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your or emission system that won't go away on its own. Potential causes may include a faulty oxygen sensor, damaged spark plug, a clogged catalytic converter, or a leaking engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your C2500 issues diagnosed and we'll determine exactly why your check engine light is on. Other signs your GMC C2500 engine needs some TLC are essential fluid leaks, or a sinking feeling that something’s wrong.

1999 C2500 Engine Services

If your 1999 C2500 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We don't start working until we have your approval. If a repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We seek to give you all the info you need to make a smart decision about our services. Choose Firestone Complete Auto Care for GMC C2500 engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the timing belt, oil gasket, ignition coil, or a different component.

Engine Q&A 1999 GMC C2500

Why does my C2500’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. This is just your C2500 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 C2500 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal 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 GMC C2500 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 pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Is it okay to put water in 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.
What could cause my C2500 engine to 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 repairs 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.