Why does the check engine light come on when I start my GS400?

It's okay if your check engine light comes on when you first start your vehicle. This is just your GS400 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my Lexus GS400 making engine noise?

Strange under-the-hood noises can point to problems within your Lexus GS400 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 can be traced back to 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 GS400 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 slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Can I add water to my Lexus GS400 radiator?

It’s not recommended you put water in your GS400 radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

What could cause my GS400 engine to suddenly stop?

If your GS400 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 fixes Lexus GS400 engines?

Your local Firestone Complete Auto Care fixes Lexus GS400 engines. Book an appointment today! We have thousands of locations across the country.

Reliable Repairs for 1999 Lexus GS400 Engines

Learn about

1999 Lexus GS400 Trim Options

Select your Lexus GS400 trim level to learn more about Lexus-recommended engine repair. Use the following chart to find information.

V8/4.0L

Repairs for Your 1999 Lexus GS400

Stuff wears out. Even your Lexus GS400’s engine parts and components will change. We’re here to help when something stops working. Select a repair or category to learn more about 1999 Lexus GS400 services.

We’re Trained to Care for Lexus GS400 Engines

Lexus GS400 engines are known for their reliability. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Sometimes plans go sideways. When they do, you might find yourself searching for 1999 Lexus GS400 engine repair or replacement parts. That's when it's time to head to Firestone Complete Auto Care. We've serviced more than 500 million vehicles since 1926, and our technicians know Lexus GS400 engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Illuminated Check Engine Light on 1999 Lexus GS400

As soon as your GS400 check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your vehicle's ignition, Potential causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your GS400 in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine pinging noises, burning smells, or a sinking feeling that something’s wrong.

1999 GS400 Engine Services

If your 1999 GS400 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We don't start working until we have your approval. If a repair isn’t urgent right now, we’ll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We seek to give you all the info you need to make a smart decision about our services. Turn to Firestone Complete Auto Care for your 1999 GS400 engine repairs and you can feel confident knowing that we use Lexus-approved parts and components like the timing belt, valve guide seal, ignition coil, or another part.

Questions About 1999 Lexus GS400 Engines

Why does the check engine light come on when I start my GS400? It's okay if your check engine light comes on when you first start your vehicle. This is just your GS400 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my Lexus GS400 making engine noise? Strange under-the-hood noises can point to problems within your Lexus GS400 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 can be traced back to 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 GS400 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 slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Can I add water to my Lexus GS400 radiator? It’s not recommended you put water in your GS400 radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
What could cause my GS400 engine to suddenly stop? If your GS400 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 fixes Lexus GS400 engines? Your local Firestone Complete Auto Care fixes Lexus GS400 engines. Book an appointment today! We have thousands of locations across the country.