Why does the check engine light in my SC400 turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your SC400 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Lexus SC400 engine noises bad?

Unusual noises can signal a problem with your Lexus SC400 engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Lexus engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Lexus SC400 engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I add water to my Lexus SC400 radiator?

While it’s not recommended, you can use water in your SC400 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 could cause my SC400 engine to suddenly stop?

Reasons your SC400 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Where can I go for Lexus SC400 repair?

For Lexus SC400 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Reliable Repairs for 1998 Lexus SC400 Engines

Learn about

1998 Lexus SC400 Trim Options

Select your Lexus SC400 trim level to learn more about Lexus-recommended engine repair. Even Lexus SC400 parts will get older and change.

V8/4.0L

Lexus SC400 Repairs and Services

Nothing stays the same forever. Even your Lexus SC400’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1998 Lexus SC400 services.

We’re Trained to Care for Lexus SC400 Engines

The Lexus SC400 is respected for its reliability. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. If they do, you’ll have to find a dependable 1998 Lexus service center — quick! That's when it's time to head to Firestone Complete Auto Care. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Lexus SC400 engine will be in good hands. 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 1998 Lexus SC400 Check Engine Light Is On

An illuminated check engine light on your Lexus SC400 is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission control system that won’t go away on its own. Potential causes may include a faulty oxygen sensor, worn spark plug, a problem with your 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 SC400 issues diagnosed and our expert techs will get the root of the problem. Other signs it's time for Lexus SC400 engine service might include oil leaks, or engine misfiring.

Engine Repairs for Your 1998 SC400

When your Lexus SC400 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. 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 SC400 engine repairs and you can drive easy knowing that we use Lexus-approved parts and fluids — cambelt, valve guide seal, ignition coil, or another part.

Questions About 1998 Lexus SC400 Engines

Why does the check engine light in my SC400 turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your SC400 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Lexus SC400 engine noises bad? Unusual noises can signal a problem with your Lexus SC400 engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Lexus engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Lexus SC400 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I add water to my Lexus SC400 radiator? While it’s not recommended, you can use water in your SC400 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 could cause my SC400 engine to suddenly stop? Reasons your SC400 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Where can I go for Lexus SC400 repair? For Lexus SC400 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.