Why does the check engine light in my C1500 Suburban turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your C1500 Suburban testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my GMC C1500 Suburban making engine noise?

Strange engine sounds can be a sign something’s off in your GMC C1500 Suburban. Tapping or knocking could mean you need an oil change. 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 a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC C1500 Suburban engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.

Is it okay to put water in my GMC C1500 Suburban radiator?

While it’s not recommended, you can use water in your C1500 Suburban 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.

What can cause a C1500 Suburban engine to suddenly stop?

If your C1500 Suburban 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 C1500 Suburban engines?

Your local Firestone Complete Auto Care has you covered with expert C1500 Suburban engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 1999 GMC C1500 Suburban

Learn about

1999 GMC C1500 Suburban Trim Options

Select your GMC C1500 Suburban trim level to learn more about GMC-recommended engine repair. Even GMC C1500 Suburban parts will get older and change.

V8/5.7L

V8/6.5L

GMC C1500 Suburban Repairs and Services

Stuff wears out. Even your GMC C1500 Suburban’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 1999 GMC C1500 Suburban services.

We Know GMC C1500 Suburban Engines

GMC C1500 Suburban drivers trust that their C1500 Suburban will take them near and far. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 1999 GMC C1500 Suburban 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 C1500 Suburban 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.

Illuminated Check Engine Light on 1999 GMC C1500 Suburban

If your C1500 Suburban 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 fuel, Potential causes may include a faulty oxygen sensor, worn spark plug, a clogged catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your C1500 Suburban 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 a sinking feeling that something’s wrong.

1999 C1500 Suburban Engine Services

If your 1999 C1500 Suburban engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. 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 give you all the details you need to make an informed decision about your engine repairs. Turn to Firestone Complete Auto Care for your 1999 C1500 Suburban engine repairs and you can drive easy knowing that we use GMC-approved parts and fluids — serpentine belt, oil gasket, sensors, or another part.

1999 GMC C1500 Suburban Engine Q&A

Why does the check engine light in my C1500 Suburban turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your C1500 Suburban testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my GMC C1500 Suburban making engine noise? Strange engine sounds can be a sign something’s off in your GMC C1500 Suburban. Tapping or knocking could mean you need an oil change. 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 a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC C1500 Suburban engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.
Is it okay to put water in my GMC C1500 Suburban radiator? While it’s not recommended, you can use water in your C1500 Suburban 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.
What can cause a C1500 Suburban engine to suddenly stop? If your C1500 Suburban 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 C1500 Suburban engines? Your local Firestone Complete Auto Care has you covered with expert C1500 Suburban engine repair. Schedule an appointment today and see us at one of our thousands of locations.