Why does my K5’s check engine light come on when I start it?

It’s usually normal for your check engine light to turn on upon ignition. It’s just your K5 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Kia K5 engine noises bad?

Strange under-the-hood noises can point to problems within your Kia K5 engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage a Kia engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Kia K5 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. 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 Kia K5 radiator?

While it’s not recommended, you can use water in your K5 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 the engine in my K5 to suddenly stop?

There are different reasons your K5 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who fixes Kia K5 engines?

Your local Firestone Complete Auto Care has you covered with expert K5 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 2025 Kia K5

Learn about

2025 Kia K5 Trim Options

Select your Kia K5 trim level to learn more about Kia-recommended engine repair. Use the following chart to find information.

2025 Kia K5 Repair

Nothing stays the same forever. Even your Kia K5's many parts and pieces. When something breaks, we're ready. Select a repair or category to learn more about 2025 Kia K5 services.

We Care for Kia K5 Engines

Kia K5 drivers trust that their K5 will take them near and far. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 2025 Kia K5 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. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Kia K5 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.

Check Engine Light on 2025 Kia K5

As soon as your K5 check engine light turns on, it’s time to get an expert’s opinion. A steady or flashing check engine light could signal a serious issue with your vehicle's ignition, Possible causes can include a failing oxygen sensor, bad spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your K5 issues diagnosed and our expert techs will get the root of the problem. engine rattling, burning smells, or misfiring.

Kia K5 Engine Repair

When your Kia K5 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We don't start working until we have your approval. If a service can wait, we’ll make sure 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 2025 K5 engine repairs and you can drive easy knowing that we use Kia-approved parts and fluids — timing chain or belt, engine oil seal, ignition coil, or other parts.

Engine Q&A 2025 Kia K5

Why does my K5’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. It’s just your K5 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Kia K5 engine noises bad? Strange under-the-hood noises can point to problems within your Kia K5 engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a Kia engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Kia K5 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. 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 Kia K5 radiator? While it’s not recommended, you can use water in your K5 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 the engine in my K5 to suddenly stop? There are different reasons your K5 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who fixes Kia K5 engines? Your local Firestone Complete Auto Care has you covered with expert K5 engine repair. Schedule an appointment today and see us at one of our thousands of locations.