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

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

Why does my Cadillac engine sound different?

Unusual noises can signal a problem with your Cadillac DeVille 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 may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Cadillac DeVille 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. Steer clear of these habits to help protect engine performance and efficiency.

Can I use water in my Cadillac DeVille radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What could cause my DeVille engine to suddenly stop?

There are different reasons your DeVille 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 can repair my Cadillac DeVille engine?

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

Engine Repairs for Your 1999 Cadillac DeVille

Learn about

1999 Cadillac DeVille Trim Options

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

V8/4.6L

Cadillac DeVille Repairs and Services

Stuff wears out. Even your Cadillac DeVille's many parts and pieces. We’re here to help when something stops working. Click on a repair below to learn more about 1999 Cadillac DeVille repairs.

We’re Trained to Care for Cadillac DeVille Engines

Cadillac DeVille engines are known for their reliability. You probably thought about that when you got it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. When they do, you might find yourself searching for 1999 Cadillac DeVille 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 more than 500 million vehicles since 1926, and our technicians know Cadillac DeVille engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Illuminated Check Engine Light on 1999 Cadillac DeVille

If your DeVille 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 car’s ignition, Causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your DeVille issues diagnosed and we'll determine exactly why your check engine light is on. Other signs it's time for Cadillac DeVille engine service might include oil leaks, or misfiring.

Cadillac DeVille Engine Repair

If your 1999 DeVille engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. If a service can wait, we’ll make sure you know. If it's necessary for your safety, we'll make sure you understand that, too. We seek to give you all the info you need to make a smart decision about our services. By choosing Firestone Complete Auto Care for DeVille engine repairs and you can feel confident knowing that we use Cadillac-approved parts and components like the serpentine belt, valve guide seal, fuses, or other parts.

1999 Cadillac DeVille Engine Q&A

Why does the check engine light come on when I start my DeVille? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your DeVille firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my Cadillac engine sound different? Unusual noises can signal a problem with your Cadillac DeVille 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 may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Cadillac DeVille 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. Steer clear of these habits to help protect engine performance and efficiency.
Can I use water in my Cadillac DeVille radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What could cause my DeVille engine to suddenly stop? There are different reasons your DeVille 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 can repair my Cadillac DeVille engine? Your local Firestone Complete Auto Care fixes Cadillac DeVille engines. Book an appointment today! We have thousands of locations across the country.