Why does my C20 Suburban’s check engine light come on when I start it?

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 is my Chevrolet C20 Suburban making engine noise?

Strange engine sounds can be a sign something’s off in your Chevrolet C20 Suburban. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Chevrolet engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Chevrolet C20 Suburban engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car 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.

Can I add water to my Chevrolet C20 Suburban radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your C20 Suburban when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a C20 Suburban engine to suddenly stop?

If your C20 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.

Where can I go for Chevrolet C20 Suburban repair?

Your local Firestone Complete Auto Care fixes Chevrolet C20 Suburban engines. Book an appointment today! We have thousands of locations across the country.

1986 Chevrolet C20 Suburban Engine Repair

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1986 Chevrolet C20 Suburban Trim Options

Select your Chevrolet C20 Suburban trim level to learn more about Chevrolet-recommended engine repair. Even Chevrolet C20 Suburban parts will get older and change.

V8/5.0L

V8/5.7L

V8/6.2L

V8/7.4L

1986 Chevrolet C20 Suburban Repair

Nothing lasts forever. Even your Chevrolet C20 Suburban's many parts and pieces. We’re here to help when something stops working. Select a repair or category to learn more about 1986 Chevrolet C20 Suburban services.

We Know Chevrolet C20 Suburban Engines

The Chevrolet C20 Suburban is respected for its reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Things can go sideways sometimes. When they do, you might find yourself searching for 1986 Chevrolet C20 Suburban engine repair or replacement parts. 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 Chevrolet C20 Suburban 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.

Illuminated Check Engine Light on 1986 Chevrolet C20 Suburban

As soon as your C20 Suburban check engine light turns on, it’s time to get an expert’s opinion. 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, worn spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your C20 Suburban in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine rattling, essential fluid leaks, or misfiring.

Engine Repairs for Your 1986 C20 Suburban

When your Chevrolet C20 Suburban engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. If a repair isn’t urgent right now, we’ll let 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 C20 Suburban engine repairs and you can drive easy knowing that we use Chevrolet-approved parts and fluids — timing belt, oil gasket, ignition coil, or other parts.

1986 Chevrolet C20 Suburban Engine Q&A

Why does my C20 Suburban’s check engine light come on when I start it? 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 is my Chevrolet C20 Suburban making engine noise? Strange engine sounds can be a sign something’s off in your Chevrolet C20 Suburban. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Chevrolet engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Chevrolet C20 Suburban engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car 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.
Can I add water to my Chevrolet C20 Suburban radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your C20 Suburban when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a C20 Suburban engine to suddenly stop? If your C20 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.
Where can I go for Chevrolet C20 Suburban repair? Your local Firestone Complete Auto Care fixes Chevrolet C20 Suburban engines. Book an appointment today! We have thousands of locations across the country.