Why does the check engine light in my LS400 turn on when I start my car?

It's okay if your check engine light comes on when you first start your vehicle. This is just your LS400 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Lexus LS400 engine noises bad?

Strange under-the-hood noises can point to problems within your Lexus LS400 engine. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my Lexus LS400 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 accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I use water in my Lexus LS400 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 LS400 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my LS400 engine suddenly stop?

If your LS400 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who repairs Lexus LS400 engines?

For Lexus LS400 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 1994 Lexus LS400 Engines

Learn about

1994 Lexus LS400 Trim Options

Select your Lexus LS400 trim level to learn more about Lexus-recommended engine repair. Even Lexus LS400 parts will get older and change.

V8/4.0L

Lexus LS400 Repairs and Services

Nothing lasts forever. Even your Lexus LS400's many parts and pieces. When something breaks or fails, we’re ready to help. Select a service or repair below to learn more about what we can do for your 1994 Lexus LS400.

We Know Lexus LS400 Engines

Lexus LS400 engines are known for their 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 the unexpected strikes, you may search the internet frantically for quick and affordable 1994 Lexus LS400 engine repairs. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Lexus LS400 engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 1994 Lexus LS400

If your LS400 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 combustion, Causes may include a faulty oxygen sensor, damaged spark plug, a clogged catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your LS400 in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. Other signs your Lexus LS400 engine needs some TLC are burning smells, or misfiring.

1994 LS400 Engine Services

If your 1994 Lexus LS400 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 service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. 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 Lexus LS400 engine repairs and you can drive easy knowing that we use Lexus-approved parts and fluids — timing belt, motor oil seal, fuses, or a different component.

1994 Lexus LS400 Engine Q&A

Why does the check engine light in my LS400 turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. This is just your LS400 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Lexus LS400 engine noises bad? Strange under-the-hood noises can point to problems within your Lexus LS400 engine. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my Lexus LS400 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 accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I use water in my Lexus LS400 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 LS400 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my LS400 engine suddenly stop? If your LS400 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who repairs Lexus LS400 engines? For Lexus LS400 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.