Why does my IS300’s check engine light come on when I start it?

It’s usually normal for your check engine light to turn on upon ignition. This is just your IS300 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Lexus IS300 engine noises bad?

Strange under-the-hood noises can point to problems within your Lexus IS300 engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Lexus IS300 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Is it okay to put water in my Lexus IS300 radiator?

It’s not recommended you put water in your IS300 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 IS300 engine to suddenly stop?

Your IS300 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who repairs Lexus IS300 engines?

For Lexus IS300 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.

2003 Lexus IS300 Engine Repair

Learn about

2003 Lexus IS300 Trim Options

Select your Lexus IS300 trim level to learn more about Lexus-recommended engine repair. Even Lexus IS300 parts will get older and change.

L6/3.0L

Lexus IS300 Repairs and Services

Nothing stays the same forever. Even your Lexus IS300's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 2003 Lexus IS300 services.

We Care for Lexus IS300 Engines

Lexus IS300 engines are known for their reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Things can go wrong on the road. When they do, you might find yourself searching for 2003 Lexus IS300 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 IS300 engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 2003 Lexus IS300

As soon as your IS300 check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your fuel, Causes may include a faulty oxygen sensor, damaged spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your IS300 in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs your Lexus IS300 engine needs some TLC are burning smells, or misfiring.

Lexus IS300 Engine Repair

When your Lexus IS300 engine needs repairs, 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 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 want to provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for IS300 engine repairs and you can feel confident knowing that we use Lexus-approved parts and components like the serpentine belt, valve guide seal, ignition coil, or other parts.

2003 Lexus IS300 Engine Q&A

Why does my IS300’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. This is just your IS300 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Lexus IS300 engine noises bad? Strange under-the-hood noises can point to problems within your Lexus IS300 engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Lexus IS300 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Is it okay to put water in my Lexus IS300 radiator? It’s not recommended you put water in your IS300 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 IS300 engine to suddenly stop? Your IS300 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who repairs Lexus IS300 engines? For Lexus IS300 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.