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

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

Why does my Toyota engine sound different?

Strange engine sounds can be a sign something’s off in your Toyota Sienna. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Toyota engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Toyota Sienna engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still 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.

Can I use water in my Toyota Sienna radiator?

It’s not recommended you put water in your Sienna 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 can cause a Sienna engine to suddenly stop?

There are different reasons your Sienna vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who fixes Toyota Sienna engines?

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

Engine Repairs for Your 1999 Toyota Sienna

Learn about

1999 Toyota Sienna Trim Options

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

V6/3.0L

Toyota Sienna Repairs and Services

Stuff wears out. Even your Toyota Sienna's many parts and pieces. We’re here to help when something stops working. Select a repair or category to learn more about 1999 Toyota Sienna services.

We Care for Toyota Sienna Engines

Toyota Sienna engines are known for their reliability. You may have even been thinking about that when you bought it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 1999 Toyota Sienna engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Toyota Sienna engine will be in good hands. 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.

Illuminated Check Engine Light on 1999 Toyota Sienna

An illuminated check engine light on your Toyota Sienna is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your combustion, Possible causes can include a failing 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 Sienna to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. engine rattling, burning smells, or engine misfiring.

1999 Sienna Engine Services

If your 1999 Toyota Sienna needs engine repair, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a repair can wait, 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. Choose Firestone Complete Auto Care for Toyota Sienna engine repairs and you can feel confident knowing that we use Toyota-approved parts and components like the cambelt, motor oil seal, ignition coil, or other parts.

Engine Q&A 1999 Toyota Sienna

Why does the check engine light in my Sienna turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. It’s just your Sienna firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why does my Toyota engine sound different? Strange engine sounds can be a sign something’s off in your Toyota Sienna. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Toyota engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Toyota Sienna engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still 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.
Can I use water in my Toyota Sienna radiator? It’s not recommended you put water in your Sienna 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 can cause a Sienna engine to suddenly stop? There are different reasons your Sienna vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who fixes Toyota Sienna engines? Your local Firestone Complete Auto Care fixes Toyota Sienna engines. Book an appointment today! We have thousands of locations across the country.