What happens if my Infiniti Q45 spark plugs fail?

Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Infiniti’s recommendations.

What does a puddle underneath my Infiniti Q45 mean?

Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.

Are hard starts and stops bad for my Infiniti Q45 engine?

You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.

Where can I get a tune-up for my Infiniti Q45?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Infiniti Q45 service, maintenance, and repairs.

How frequently do the fuel injectors in my Infiniti Q45 need to be cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your Q45 fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.

Who can I go to for Infiniti Q45 tune-ups?

Visit your nearby Firestone Complete Auto Care for Infiniti Q45 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

1991 Infiniti Q45 Tune-Up & Engine Service

Get a Tune-Up

Schedule Infiniti Q45 Tune-Up

If your Q45 is acting strange or making new noises, it could be engine tune-up time. Don’t wait until small problems get bigger. Make an appointment now.

Schedule an Appointment

Tune Into Your Infiniti Q45

Is it time for an engine tune-up? If you usually wait until your car has an issue to take it in for service, it might be time to change your ways, especially if you want your 1991 Infiniti Q45’s engine to last for a long time. Periodic tune-ups can bring more power back to your Q45’s engine. Tune-ups help your engine start smoothly and run efficiently, which can lead to lower emission levels and better fuel economy. When you follow the guidelines specified by Infiniti for your vehicle’s tune-up schedule, you can rest assured you’re investing in your Q45’s long-term engine performance.

Infiniti Q45 Engine Tune-Up Services

The Firestone Complete Auto Care location in your community offers several Infiniti Q45 engine tune-up services. One option is the standard Firestone Tune-Up. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. Another service option pays special attention to the filters in your Q45. Specifically, we replace the fuel filter and air filter. Our third service is a thorough cleaning of the fuel system. During this type of tune-up, we use a three-step process to get rid of harmful varnish, dirt, and carbon deposit buildup in your Q45’s fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Consider this when choosing a tune-up service for your Q45: your vehicle’s maintenance record and mileage can determine which service is best. A one-size-fits-all engine tune-up procedure doesn’t necessarily exist. Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where to Get a Infiniti Q45 Tune-Up

Come to Firestone Complete Auto Care for your next 1991 Q45 engine tune-up. Follow Infiniti's recommended maintenance schedule or book an appointment as soon as you notice one of the following: stalling or shaky idling when you’re stopped, diminished fuel economy, knocking noises in the engine, or a lit up check engine light on your dashboard.

*Check with a teammate at Firestone Complete Auto Care for complete terms and conditions regarding warranties.

1991 Infiniti Q45 Engine Tune-Up Q&A

What happens if my Infiniti Q45 spark plugs fail? Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Infiniti’s recommendations.
What does a puddle underneath my Infiniti Q45 mean? Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.
Are hard starts and stops bad for my Infiniti Q45 engine? You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.
Where can I get a tune-up for my Infiniti Q45? At your closest Firestone Complete Auto Care! Our experienced technicians offer Infiniti Q45 service, maintenance, and repairs.
How frequently do the fuel injectors in my Infiniti Q45 need to be cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your Q45 fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.
Who can I go to for Infiniti Q45 tune-ups? Visit your nearby Firestone Complete Auto Care for Infiniti Q45 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

1991 Infiniti Q45 Maintenance

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Infiniti Q45 to keep it on the road and running smoothly. Learn more about maintenance below.

Repair Service for Your 1991 Infiniti Q45

Nothing lasts forever. Even your Infiniti Q45's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 1991 Infiniti Q45 repairs.