Why does my Yukon’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 just your Yukon 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?

Strange engine sounds can be a sign something’s off in your GMC Yukon. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my GMC Yukon engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. 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 GMC Yukon 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 Yukon when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my Yukon engine suddenly stop?

There are different reasons your Yukon 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 repairs GMC Yukon engines?

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

Reliable Repairs for 2018 GMC Yukon Engines

Learn about

2018 GMC Yukon Trim Options

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

V8/5.3L

V8/6.2L

2018 GMC Yukon Repair

Nothing stays the same forever. Even your GMC Yukon's many parts and pieces. 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 2018 GMC Yukon.

We Care for GMC Yukon Engines

GMC Yukon engines are known for their reliability. You may have even been thinking about that when you bought it. 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 2018 GMC service center — quick! 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 GMC Yukon 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.

My 2018 GMC Yukon Check Engine Light Is On

An illuminated check engine light on your GMC Yukon 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, Possible causes can include a failing oxygen sensor, damaged spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few potential sources. Bring your Yukon in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. engine pinging noises, essential fluid leaks, or a sinking feeling that something’s wrong.

GMC Yukon Engine Repair

If your 2018 GMC Yukon needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair can wait, 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. Choose Firestone Complete Auto Care for GMC Yukon engine repairs and you can feel confident knowing that we use GMC-approved parts and components like the timing chain or belt, valve guide seal, ignition coil, or a different component.

2018 GMC Yukon Engine Q&A

Why does my Yukon’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 just your Yukon 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? Strange engine sounds can be a sign something’s off in your GMC Yukon. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my GMC Yukon engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. 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 GMC Yukon 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 Yukon when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my Yukon engine suddenly stop? There are different reasons your Yukon 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 repairs GMC Yukon engines? Your local Firestone Complete Auto Care fixes GMC Yukon engines. Book an appointment today! We have thousands of locations across the country.