Why does the check engine light come on when I start my FX45?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your FX45 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 Infiniti engine sound different?

Unusual noises can signal a problem with your Infiniti FX45 engine. Tapping or knocking could mean you're low on 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 my Infiniti FX45 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I add water to my Infiniti FX45 radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your FX45 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my FX45 to suddenly stop?

Your FX45 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes Infiniti FX45 engines?

Your local Firestone Complete Auto Care has you covered with expert FX45 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 2003 Infiniti FX45 Engines

Learn about

2003 Infiniti FX45 Trim Options

Select your Infiniti FX45 trim level to learn more about Infiniti-recommended engine repair. Even Infiniti FX45 parts will get older and change.

V8/4.5L

Repairs for Your 2003 Infiniti FX45

Stuff wears out. Even your Infiniti FX45's many parts and pieces. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 2003 Infiniti FX45 repairs.

We Know Infiniti FX45 Engines

Infiniti FX45 drivers trust that their FX45 will take them near and far. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Things can go sideways sometimes. When they do, you might find yourself searching for 2003 Infiniti FX45 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 Infiniti FX45 engine will be in good hands. 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.

Illuminated Check Engine Light on 2003 Infiniti FX45

An illuminated check engine light on your Infiniti FX45 is one of the first signs it's time to 'brake' for engine service. A check engine light that’s flashing or steadily illuminated could point to problems with your combustion, Potential causes may include a faulty oxygen sensor, damaged spark plug, issues with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your FX45 to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. Other signs your Infiniti FX45 engine needs some TLC are essential fluid leaks, or misfiring.

2003 FX45 Engine Services

When your Infiniti FX45 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2003 FX45 engine repairs and you can feel good knowing that we only use Infiniti-compliant replacement parts such as the cambelt, valve guide seal, fuses, or other parts.

Questions About 2003 Infiniti FX45 Engines

Why does the check engine light come on when I start my FX45? It's okay if your check engine light comes on when you first start your vehicle. It’s just your FX45 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 Infiniti engine sound different? Unusual noises can signal a problem with your Infiniti FX45 engine. Tapping or knocking could mean you're low on 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 my Infiniti FX45 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I add water to my Infiniti FX45 radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your FX45 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my FX45 to suddenly stop? Your FX45 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes Infiniti FX45 engines? Your local Firestone Complete Auto Care has you covered with expert FX45 engine repair. Schedule an appointment today and see us at one of our thousands of locations.