Why does the check engine light come on when I start my Q45?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your Q45 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 is my Infiniti Q45 making engine noise?

Strange engine sounds can be a sign something’s off in your Infiniti Q45. Knocking or tapping could be a symptom of low oil. 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 Q45 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I put water in my Infiniti Q45 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 Q45 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a Q45 engine to suddenly stop?

There are different reasons your Q45 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 can repair my Infiniti Q45 engine?

For Infiniti Q45 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Engine Repairs for Your 1994 Infiniti Q45

Learn about

1994 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 1994 Infiniti Q45

Nothing lasts forever. Even your Infiniti Q45’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 1994 Infiniti Q45.

We Care for Infiniti Q45 Engines

Infiniti Q45 engines are known for their reliability. 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 1994 Infiniti Q45 engine repair or replacement parts. That's when it's time to head to Firestone Complete Auto Care. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Infiniti Q45 engine will be in good hands. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 1994 Infiniti Q45 Check Engine Light Is On

As soon as your Q45 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 vehicle's ignition, Potential causes may include a faulty oxygen sensor, damaged spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your Q45 issues diagnosed and we'll determine exactly why your check engine light is on. Other signs your Infiniti Q45 engine needs some TLC are essential fluid leaks, or engine misfiring.

Engine Repairs for Your 1994 Q45

If your 1994 Q45 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a repair can wait, we'll let 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. By choosing Firestone Complete Auto Care for Q45 engine repairs and you can feel confident knowing that we use Infiniti-approved parts and components like the serpentine belt, motor oil seal, ignition coil, or another part.

1994 Infiniti Q45 Engine Q&A

Why does the check engine light come on when I start my Q45? It's okay if your check engine light comes on when you first start your vehicle. It’s just your Q45 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 is my Infiniti Q45 making engine noise? Strange engine sounds can be a sign something’s off in your Infiniti Q45. Knocking or tapping could be a symptom of low oil. 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 Q45 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I put water in my Infiniti Q45 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 Q45 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a Q45 engine to suddenly stop? There are different reasons your Q45 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 can repair my Infiniti Q45 engine? For Infiniti Q45 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.