Why does the check engine light in my FX35 turn on when I start my car?

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 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?

Strange under-the-hood noises can point to problems within your Infiniti FX35 engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Infiniti FX35 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.

Can I put water in my Infiniti FX35 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 FX35 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my FX35 engine to suddenly stop?

Your FX35 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes Infiniti FX35 engines?

Your local Firestone Complete Auto Care has you covered with expert FX35 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 2003 Infiniti FX35

Learn about

2003 Infiniti FX35 Trim Options

Select your Infiniti FX35 trim level to learn more about Infiniti-recommended engine repair. Use the following chart to find information.

V6/3.5L

Infiniti FX35 Repairs and Services

Stuff wears out. Even your Infiniti FX35’s engine parts and components will change. 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 Infiniti FX35.

We Care for Infiniti FX35 Engines

The Infiniti FX35 is respected for its reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If they do, you’ll have to find a dependable 2003 Infiniti service center — quick! 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 Infiniti FX35 engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Illuminated Check Engine Light on 2003 Infiniti FX35

If your FX35 check engine light is on, it’s time to get it looked at. A steady or flashing check engine light could signal a serious issue with your car’s starter, Potential causes may include a faulty oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your FX35 in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs your Infiniti FX35 engine needs some TLC are burning smells, or engine misfiring.

Engine Repairs for Your 2003 FX35

When your Infiniti FX35 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. 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 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 FX35 engine repairs and you can drive easy knowing that we use Infiniti-approved parts and fluids — timing chain or belt, oil gasket, fuses, or other parts.

2003 Infiniti FX35 Engine Q&A

Why does the check engine light in my FX35 turn on when I start my car? 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 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? Strange under-the-hood noises can point to problems within your Infiniti FX35 engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Infiniti FX35 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.
Can I put water in my Infiniti FX35 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 FX35 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my FX35 engine to suddenly stop? Your FX35 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes Infiniti FX35 engines? Your local Firestone Complete Auto Care has you covered with expert FX35 engine repair. Schedule an appointment today and see us at one of our thousands of locations.