Why does the check engine light come on when I start my M45?

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why is my Infiniti M45 making engine noise?

Unusual noises can signal a problem with your Infiniti M45 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal 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 my Infiniti M45 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my Infiniti M45 radiator?

It’s not recommended you put water in your M45 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 M45 engine to suddenly stop?

There are different reasons your M45 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 Infiniti M45 engines?

Your local Firestone Complete Auto Care fixes Infiniti M45 engines. Book an appointment today! We have thousands of locations across the country.

2003 Infiniti M45 Engine Repair

Learn about

2003 Infiniti M45 Trim Options

Select your Infiniti M45 trim level to learn more about Infiniti-recommended engine repair. Even Infiniti M45 parts will get older and change.

V8/4.5L

Repairs for Your 2003 Infiniti M45

Nothing lasts forever. Even your Infiniti M45’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 2003 Infiniti M45 repairs.

We’re Trained to Care for Infiniti M45 Engines

Infiniti M45 drivers trust that their M45 will take them near and far. That might be why you bought it in the first place. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 2003 Infiniti M45 engine repairs. That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know Infiniti M45 engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. 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 Infiniti M45

An illuminated check engine light on your Infiniti M45 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, Potential causes may include a faulty oxygen sensor, worn spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few potential sources. Bring your M45 in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. engine pinging noises, essential fluid leaks, or misfiring.

Infiniti M45 Engine Repair

If your 2003 M45 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure 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 M45 engine repairs and you can feel good knowing that we only use Infiniti-compliant replacement parts such as the timing belt, oil gasket, sensors, or other parts.

Questions About 2003 Infiniti M45 Engines

Why does the check engine light come on when I start my M45? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why is my Infiniti M45 making engine noise? Unusual noises can signal a problem with your Infiniti M45 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal 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 my Infiniti M45 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my Infiniti M45 radiator? It’s not recommended you put water in your M45 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 M45 engine to suddenly stop? There are different reasons your M45 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 Infiniti M45 engines? Your local Firestone Complete Auto Care fixes Infiniti M45 engines. Book an appointment today! We have thousands of locations across the country.