Why does my 6’s check engine light come on when I start it?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your 6 firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Mazda 6 engine noises bad?

Strange engine sounds can be a sign something’s off in your Mazda 6. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Mazda engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mazda 6 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Mazda 6 radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What can cause the engine in my 6 to suddenly stop?

If your 6 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Where can I go for Mazda 6 repair?

Your local Firestone Complete Auto Care has you covered with expert 6 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

2003 Mazda 6 Engine Repair

Learn about

2003 Mazda 6 Trim Options

Select your Mazda 6 trim level to learn more about Mazda-recommended engine repair. Use the following chart to find information.

L4/2.3L

V6/3.0L

Repairs for Your 2003 Mazda 6

Nothing stays the same forever. Even your Mazda 6's many parts and pieces. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 2003 Mazda 6.

We Know Mazda 6 Engines

The Mazda 6 is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. When they do, you might find yourself searching for 2003 Mazda 6 engine repair or replacement parts. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Mazda 6 engines. Schedule an appointment if you're experiencing problems that could require engine repair. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 2003 Mazda 6

As soon as your 6 check engine light turns on, it’s time to get an expert’s opinion. A steady or flashing check engine light could signal a serious issue with your combustion, Possible causes can include a failing oxygen sensor, damaged spark plug, a problem with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your 6 to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. Other signs your Mazda 6 engine needs some TLC are oil leaks, or engine misfiring.

Mazda 6 Engine Repair

If your 2003 Mazda 6 needs engine repair, our technicians will make sure you understand what’s going on before they start working on your engine. We don't start working until we have your approval. If a repair can wait, we'll let you know. If it's necessary for your safety, we'll make sure you understand that, 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 2003 6 engine repairs and you can feel confident knowing that we use Mazda-approved parts and components like the timing chain or belt, valve guide seal, ignition coil, or other parts.

2003 Mazda 6 Engine Q&A

Why does my 6’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. It’s just your 6 firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Mazda 6 engine noises bad? Strange engine sounds can be a sign something’s off in your Mazda 6. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Mazda engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mazda 6 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Mazda 6 radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What can cause the engine in my 6 to suddenly stop? If your 6 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Where can I go for Mazda 6 repair? Your local Firestone Complete Auto Care has you covered with expert 6 engine repair. Schedule an appointment today and see us at one of our thousands of locations.