Why does the check engine light come on when I start my Sonata?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your Sonata firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why is my Hyundai Sonata making engine noise?

Unusual noises can signal a problem with your Hyundai Sonata engine. 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 be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Hyundai engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Hyundai Sonata 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 accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I add water to my Hyundai Sonata radiator?

It’s not recommended you put water in your Sonata 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 can cause the engine in my Sonata to suddenly stop?

If your Sonata 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 Hyundai Sonata repair?

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

Reliable Repairs for 1990 Hyundai Sonata Engines

Learn about

1990 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.

L4/2.4L

V6/3.0L

Repairs for Your 1990 Hyundai Sonata

Nothing lasts forever. Even your Hyundai Sonata’s engine parts and components will change. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 1990 Hyundai Sonata.

We Care for Hyundai Sonata Engines

Hyundai Sonata engines are known for their reliability. That might be why you bought it in the first place. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1990 Hyundai service center — quick! That's when it's time to head to Firestone Complete Auto Care. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Hyundai Sonata engines. Schedule an appointment if you're experiencing problems that could require engine repair. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

My 1990 Hyundai Sonata Check Engine Light Is On

If your Sonata check engine light is on, it’s time to get it looked at. A steady or flashing check engine light could signal a serious issue with your fuel injection, Causes may include a faulty oxygen sensor, worn spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Stop by your local Firestone Complete Auto Care to get your Sonata issues diagnosed and we'll determine exactly why your check engine light is on. engine rattling, oil leaks, or engine misfiring.

Engine Repairs for Your 1990 Sonata

If your 1990 Sonata engine needs repairs, our technicians will provide you with a thorough explanation beforehand. 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 provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for Hyundai Sonata engine repairs and you can feel confident knowing that we use Hyundai-approved parts and components like the timing belt, valve guide seal, sensors, or another part.

Engine Q&A 1990 Hyundai Sonata

Why does the check engine light come on when I start my Sonata? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your Sonata firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why is my Hyundai Sonata making engine noise? Unusual noises can signal a problem with your Hyundai Sonata engine. 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 be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Hyundai engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Hyundai Sonata 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 accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I add water to my Hyundai Sonata radiator? It’s not recommended you put water in your Sonata 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 can cause the engine in my Sonata to suddenly stop? If your Sonata 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 Hyundai Sonata repair? Your local Firestone Complete Auto Care has you covered with expert Sonata engine repair. Schedule an appointment today and see us at one of our thousands of locations.