Will it hurt my Lexus LS400 to drive with old spark plugs?

Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.

What should I do if I see leaks under my LS400?

Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.

Are some driving habits better for my Lexus LS400 engine than others?

Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.

Where can I have a Lexus LS400 tune-up done?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Lexus LS400 service, maintenance, and repairs.

How often should I clean my Lexus LS400 fuel injectors?

Factors like fuel type and driving conditions can affect how frequently you need to clean your LS400 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 can I go to for Lexus LS400 tune-ups?

Visit your local Firestone Complete Auto Care for your Lexus LS400 tune-up. Make an appointment online and view our latest offers to save big.

Engine Tune-Up Service for Your 1990 Lexus LS400

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Schedule Lexus LS400 Tune-Up

Tune in to tune up. Listen to your LS400 and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

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Tune Into Your Lexus LS400

Is your engine overdue for a tune-up? If you're the type of driver who waits for something to go wrong with your vehicle, it could be time for a new way of doing things, especially if you want your 1990 Lexus LS400’s engine to last for a long time. Periodic tune-ups can bring more power back to your LS400’s engine. 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 get routine engine tune-ups based on Lexus's recommendations, you’re taking vital steps toward keeping your LS400’s engine running smoother, longer.

Lexus LS400 Engine Tune-Up Services

The Firestone Complete Auto Care location in your community offers several Lexus LS400 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 LS400. 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 LS400's fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Here’s something to remember when choosing services: the mileage and service history of your LS400 can determine what kind of service it 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 Should I Go for My Lexus LS400 Tune-Up?

Schedule your next 1990 LS400 engine tune-up service at Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from Lexus, or make a service appointment if you notice any of these symptoms from your engine: stalling or shaky idling when you’re stopped, diminished fuel economy, engine knocking, or an illuminated check engine light.

*Check with a teammate at Firestone Complete Auto Care for complete terms and conditions regarding warranties.

Common Engine Tune-Up Q&A For 1990 Lexus LS400s

Will it hurt my Lexus LS400 to drive with old spark plugs? Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.
What should I do if I see leaks under my LS400? Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.
Are some driving habits better for my Lexus LS400 engine than others? Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.
Where can I have a Lexus LS400 tune-up done? At your closest Firestone Complete Auto Care! Our experienced technicians offer Lexus LS400 service, maintenance, and repairs.
How often should I clean my Lexus LS400 fuel injectors? Factors like fuel type and driving conditions can affect how frequently you need to clean your LS400 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 can I go to for Lexus LS400 tune-ups? Visit your local Firestone Complete Auto Care for your Lexus LS400 tune-up. Make an appointment online and view our latest offers to save big.

1990 Lexus LS400 Maintenance

Take care of your vehicle and it'll take care of you. Click on a service below to learn more about properly maintaining your Lexus LS400.

Repair Service for Your 1990 Lexus LS400

Your Lexus LS400 runs best when it’s well cared for. Make sure it’s always in tip-top shape with repairs from Firestone Complete Auto Care. Learn more about 1990 Lexus LS400 repairs below.