Why does my Sonata’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 a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Hyundai Sonata engine noises bad?

Unusual noises can signal a problem with your Hyundai Sonata engine. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Hyundai Sonata 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 slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Hyundai Sonata 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 Sonata when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my Sonata to suddenly stop?

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

Who fixes Hyundai Sonata engines?

For Hyundai Sonata 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.

Engine Repairs for Your 2021 Hyundai Sonata

Learn about

2021 Hyundai Sonata Trim Options

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

L4/1.6L

L4/2.5L

L4/1.6L

L4/2.5L

L4/1.6L

L4/2.5L

L4/1.6L

L4/2.5L

Repairs for Your 2021 Hyundai Sonata

Stuff wears out. Even your Hyundai Sonata's many parts and pieces. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 2021 Hyundai Sonata.

We’re Trained to Care for Hyundai Sonata Engines

Hyundai Sonata drivers trust that their Sonata will take them near and far. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2021 Hyundai Sonata engine repairs. 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 Hyundai Sonata engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Check Engine Light on 2021 Hyundai Sonata

An illuminated check engine light on your Hyundai Sonata is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your vehicle's ignition, Causes may include a faulty oxygen sensor, damaged spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your Sonata issues diagnosed and we’ll figure out why that check engine light is giving you grief. rattling sounds, oil leaks, or engine misfiring.

2021 Sonata Engine Services

If your 2021 Sonata engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair can wait, 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. Turn to Firestone Complete Auto Care for your 2021 Sonata engine repairs and you can feel confident knowing that we use Hyundai-approved parts and components like the cambelt, valve guide seal, fuses, or other parts.

Engine Q&A 2021 Hyundai Sonata

Why does my Sonata’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 a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Hyundai Sonata engine noises bad? Unusual noises can signal a problem with your Hyundai Sonata engine. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Hyundai Sonata 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 slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Hyundai Sonata 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 Sonata when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my Sonata to suddenly stop? Reasons your Sonata car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes Hyundai Sonata engines? For Hyundai Sonata 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.