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

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Yukon testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why is my GMC Yukon making engine noise?

Strange under-the-hood noises can point to problems within your GMC Yukon 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 my GMC Yukon engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle 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.

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.

What could cause my Yukon engine to 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.

Where can I go for GMC Yukon repair?

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

Engine Repairs for Your 1999 GMC Yukon

Learn about

1999 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.

V8/5.7L

Repairs for Your 1999 GMC Yukon

Stuff wears out. Even your GMC Yukon's many parts and pieces. When something breaks, we're ready. Select a repair or category to learn more about 1999 GMC Yukon services.

We Know GMC Yukon Engines

The GMC Yukon is respected for its reliability. 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 1999 GMC Yukon engine repairs. 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 GMC Yukon 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 1999 GMC Yukon

If your Yukon check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your or emission control system that won’t go away on its own. Potential causes may include a faulty oxygen sensor, damaged 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 Yukon issues diagnosed and our expert techs will get the root of the problem. Other signs it's time for GMC Yukon engine service might include essential fluid leaks, or engine misfiring.

1999 Yukon Engine Services

When your GMC Yukon engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for GMC Yukon engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the timing chain or belt, motor oil seal, ignition coil, or other parts.

1999 GMC Yukon Engine Q&A

Why does the check engine light come on when I start my Yukon? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Yukon testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why is my GMC Yukon making engine noise? Strange under-the-hood noises can point to problems within your GMC Yukon 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 my GMC Yukon engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle 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.
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.
What could cause my Yukon engine to 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.
Where can I go for GMC Yukon repair? Your local Firestone Complete Auto Care fixes GMC Yukon engines. Book an appointment today! We have thousands of locations across the country.