Why does my C1500 Suburban’s check engine light come on when I start it?

It’s usually normal for your check engine light to turn on upon ignition. 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 does my GMC engine sound different?

Unusual noises can signal a problem with your GMC C1500 Suburban engine. Tapping or knocking could mean you're low on 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 might be coming from the 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?

Some driving habits are not so great for your engine. These include driving on a near-empty gas 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 add water to 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.

Why did my C1500 Suburban engine suddenly stop?

Reasons your C1500 Suburban car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who repairs 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.

Reliable Repairs for 1986 GMC C1500 Suburban Engines

Learn about

1986 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.

V8/5.0L

V8/5.7L

V8/6.2L

Repairs for Your 1986 GMC C1500 Suburban

Nothing lasts forever. Even your GMC C1500 Suburban’s engine parts and components will change. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 1986 GMC C1500 Suburban.

We Know GMC C1500 Suburban Engines

GMC C1500 Suburban drivers trust that their C1500 Suburban will take them near and far. 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 wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 1986 GMC C1500 Suburban engine repairs. 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 GMC C1500 Suburban engine will be in good hands. 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.

Check Engine Light on 1986 GMC C1500 Suburban

An illuminated check engine light on your GMC C1500 Suburban 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 ignition, Potential causes may include a faulty oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your C1500 Suburban to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. Other signs your GMC C1500 Suburban engine needs some TLC are burning smells, or a sinking feeling that something’s wrong.

Engine Repairs for Your 1986 C1500 Suburban

If your 1986 GMC C1500 Suburban needs engine repair, our technicians will make sure you understand what’s going on before they start working on your engine. We don't start working until we have your approval. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. We want to give you all the details you need to make an informed decision about your engine repairs. Choose Firestone Complete Auto Care for GMC C1500 Suburban engine repairs and you can drive easy knowing that we use GMC-approved parts and fluids — serpentine belt, motor oil seal, ignition coil, or a different component.

1986 GMC C1500 Suburban Engine Q&A

Why does my C1500 Suburban’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. 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 does my GMC engine sound different? Unusual noises can signal a problem with your GMC C1500 Suburban engine. Tapping or knocking could mean you're low on 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 might be coming from the 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? Some driving habits are not so great for your engine. These include driving on a near-empty gas 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 add water to 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.
Why did my C1500 Suburban engine suddenly stop? Reasons your C1500 Suburban car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs 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.