Why does my Navigator’s check engine light come on when I start it?

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 is my Lincoln Navigator making engine noise?

Strange engine sounds can be a sign something’s off in your Lincoln Navigator. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Lincoln Navigator 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 pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Is it okay to put water in my Lincoln Navigator 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.

What can cause a Navigator engine to suddenly stop?

Reasons your Navigator car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who repairs Lincoln Navigator engines?

Your local Firestone Complete Auto Care offers Lincoln Navigator engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Engine Repairs for Your 2003 Lincoln Navigator

Learn about

2003 Lincoln Navigator Trim Options

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

V8/5.4L

2003 Lincoln Navigator Repair

Nothing lasts forever. Even your Lincoln Navigator’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a service or repair below to learn more about what we can do for your 2003 Lincoln Navigator.

We Know Lincoln Navigator Engines

The Lincoln Navigator 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. Things can go sideways sometimes. If they do, you’ll have to find a dependable 2003 Lincoln service center — quick! That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Lincoln Navigator 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.

My 2003 Lincoln Navigator Check Engine Light Is On

An illuminated check engine light on your Lincoln Navigator 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, Possible causes can include a failing oxygen sensor, bad spark plug, a clogged catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Stop by your local Firestone Complete Auto Care to get your Navigator issues diagnosed and our expert techs will get the root of the problem. Other signs your Lincoln Navigator engine needs some TLC are oil leaks, or misfiring.

Engine Repairs for Your 2003 Navigator

If your 2003 Lincoln Navigator needs engine repair, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. We seek to give you all the info you need to make a smart decision about our services. Choose Firestone Complete Auto Care for Lincoln Navigator engine repairs and you can drive easy knowing that we use Lincoln-approved parts and fluids — cambelt, engine oil seal, ignition coil, or other parts.

Questions About 2003 Lincoln Navigator Engines

Why does my Navigator’s check engine light come on when I start it? 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 is my Lincoln Navigator making engine noise? Strange engine sounds can be a sign something’s off in your Lincoln Navigator. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Lincoln Navigator 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 pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Is it okay to put water in my Lincoln Navigator 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.
What can cause a Navigator engine to suddenly stop? Reasons your Navigator car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs Lincoln Navigator engines? Your local Firestone Complete Auto Care offers Lincoln Navigator engine repair. Schedule an appointment today at one of our thousands of locations nationwide!