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

It’s usually normal for your check engine light to turn on upon ignition. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Are Ford Mustang engine noises bad?

Unusual noises can signal a problem with your Ford Mustang engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Ford Mustang 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 use water in my Ford Mustang radiator?

It’s not recommended you put water in your Mustang radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

What can cause a Mustang engine to suddenly stop?

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

Who fixes Ford Mustang engines?

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

2003 Ford Mustang Engine Repair

Learn about

2003 Ford Mustang Trim Options

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

V6/3.8L

V8/4.6L

Ford Mustang Repairs and Services

Nothing lasts forever. Even your Ford Mustang's many parts and pieces. 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 Ford Mustang.

We Care for Ford Mustang Engines

Ford Mustang engines are known for their 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 the unexpected strikes, you may search the internet frantically for quick and affordable 2003 Ford Mustang engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Ford Mustang engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. 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 Ford Mustang Check Engine Light Is On

If your Mustang check engine light is on, it’s time to get it looked at. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission system, and it won’t go away by ignoring it. Causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few potential sources. Bring your Mustang in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs your Ford Mustang engine needs some TLC are essential fluid leaks, or misfiring.

Engine Repairs for Your 2003 Mustang

If your 2003 Ford Mustang needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. 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 provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for Mustang engine repairs and you can feel confident knowing that we use Ford-approved parts and components like the cambelt, valve guide seal, ignition coil, or another part.

Questions About 2003 Ford Mustang Engines

Why does the check engine light come on when I start my Mustang? It’s usually normal for your check engine light to turn on upon ignition. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Are Ford Mustang engine noises bad? Unusual noises can signal a problem with your Ford Mustang engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Ford Mustang 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 use water in my Ford Mustang radiator? It’s not recommended you put water in your Mustang radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
What can cause a Mustang engine to suddenly stop? Your Mustang car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes Ford Mustang engines? Your local Firestone Complete Auto Care fixes Ford Mustang engines. Book an appointment today! We have thousands of locations across the country.