Why does the check engine light in my Q45 turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your Q45 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why is my Infiniti Q45 making engine noise?

Unusual noises can signal a problem with your Infiniti Q45 engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal 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 a Infiniti engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Infiniti Q45 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I add water to my Infiniti Q45 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.

Why did my Q45 engine suddenly stop?

If your Q45 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who repairs Infiniti Q45 engines?

Your local Firestone Complete Auto Care fixes Infiniti Q45 engines. Book an appointment today! We have thousands of locations across the country.

2005 Infiniti Q45 Engine Repair

Learn about

2005 Infiniti Q45 Trim Options

Select your Infiniti Q45 trim level to learn more about Infiniti-recommended engine repair. Use the following chart to find information.

V8/4.5L

Repairs for Your 2005 Infiniti Q45

Nothing lasts forever. Even your Infiniti Q45’s engine parts and components will change. When something breaks, we're ready. Click on a repair below to learn more about 2005 Infiniti Q45 repairs.

We Care for Infiniti Q45 Engines

The Infiniti Q45 is respected for its reliability. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Sometimes plans go sideways. If they do, you’ll have to find a dependable 2005 Infiniti service center — quick! That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know Infiniti Q45 engines. Schedule a courtesy inspection at the first sign of engine trouble. 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 2005 Infiniti Q45

An illuminated check engine light on your Infiniti Q45 is one of the first signs it's time to 'brake' for engine service. A steady or flashing check engine light could signal a serious issue with your fuel injection, Possible causes can include a failing oxygen sensor, worn spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your Q45 to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. rattling sounds, oil leaks, or a sinking feeling that something’s wrong.

Infiniti Q45 Engine Repair

When your Infiniti Q45 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. If it's necessary for your safety, we'll make sure you understand that, too. We want to give you all the details you need to make an informed decision about your engine repairs. By choosing Firestone Complete Auto Care for Q45 engine repairs and you can drive easy knowing that we use Infiniti-approved parts and fluids — timing belt, valve guide seal, fuses, or other parts.

Engine Q&A 2005 Infiniti Q45

Why does the check engine light in my Q45 turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your Q45 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why is my Infiniti Q45 making engine noise? Unusual noises can signal a problem with your Infiniti Q45 engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal 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 a Infiniti engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Infiniti Q45 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I add water to my Infiniti Q45 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.
Why did my Q45 engine suddenly stop? If your Q45 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who repairs Infiniti Q45 engines? Your local Firestone Complete Auto Care fixes Infiniti Q45 engines. Book an appointment today! We have thousands of locations across the country.