Will it hurt my Lexus GS400 to drive with old spark plugs?

Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Lexus’s recommendations.

What does a puddle underneath my Lexus GS400 mean?

Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.

Are hard starts and stops bad for my Lexus GS400 engine?

Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.

Where can I get a Lexus GS400 tune-up?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Lexus GS400s.

How often do Lexus GS400 fuel injectors need to be cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your GS400 fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.

Who performs Lexus GS400 tune-ups?

Visit your nearby Firestone Complete Auto Care for Lexus GS400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

1999 Lexus GS400 Tune-Up & Engine Service

Get a Tune-Up

Schedule Lexus GS400 Tune-Up

If your GS400 is acting strange or making new noises, it could be engine tune-up time. Don’t wait until small problems get bigger. Make an appointment now.

Schedule an Appointment

Tune Into Your Lexus GS400

Is it tune-up time? If you tend to ignore your car until something goes wrong, now is the time to work on that habit, especially if you want your 1999 Lexus GS400’s engine to last for a long time. Regular engine tune-ups can optimize your GS400’s power on the road. Tune-ups help your engine start smoothly and run efficiently, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you follow the guidelines specified by Lexus for your vehicle’s tune-up schedule, you can rest assured you’re investing in your GS400’s long-term engine performance.

Lexus GS400 Engine Tune-Up Services

The Firestone Complete Auto Care location in your community offers several Lexus GS400 engine tune-up services. One option is the standard Firestone Tune-Up. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. Another service option pays special attention to the filters in your GS400. Specifically, we replace the fuel filter and air filter. The third tune-up option is a fuel system cleaning service, which is a three-step process that removes varnish, dirt, and carbon deposits on your GS400's fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Keep in mind that your GS400's mileage and maintenance history can uniquely impact its tune-up needs. If you’re not sure what services are the best fit for your car, let us help! Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where to Get a Tune-Up for Your Lexus GS400

If you’re looking for 1999 GS400 engine tune-up services, head to Firestone Complete Auto Care. Not sure when you’re due for a tune-up? Use Lexus’s recommended maintenance schedule as a reference point, or schedule an appointment ASAP if you notice any of these signs: stalling or shaky idling when you’re stopped, diminished fuel economy, engine knocking, or an illuminated check engine light.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

Questions About 1999 Lexus GS400 Engine Tune-Ups

Will it hurt my Lexus GS400 to drive with old spark plugs? Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Lexus’s recommendations.
What does a puddle underneath my Lexus GS400 mean? Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.
Are hard starts and stops bad for my Lexus GS400 engine? Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.
Where can I get a Lexus GS400 tune-up? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Lexus GS400s.
How often do Lexus GS400 fuel injectors need to be cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your GS400 fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.
Who performs Lexus GS400 tune-ups? Visit your nearby Firestone Complete Auto Care for Lexus GS400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Maintenance for Your 1999 Lexus GS400

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Lexus GS400 to keep it on the road and running smoothly. Learn more about maintenance below.

1999 Lexus GS400 Repair

Your car takes care of you, and we’ll take care of your car. When it’s time for a repair on your Lexus GS400, we’re here to help. Check out more info below about 1999 Lexus GS400 repairs.