Why won’t my Grand Marquis battery hold a charge?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop in for a free battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old Grand Marquis battery?

We recycle it, taking care of both your car and the Earth.

What’s the cost of DieHard batteries for Mercury Grand Marquiss?

Mercury Grand Marquis batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

How long do car batteries last?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

What is the white, crusty substance accumulating on my Grand Marquis’s battery post?

The white, crusty stuff that can accumulate around Grand Marquis car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

How do I clean a corroded Grand Marquis battery terminal?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Grand Marquis owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.

Who carries Grand Marquis batteries near me?

Your local Firestone Complete Auto Care sells and installs Grand Marquis batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

2003 Mercury Grand Marquis Batteries

Get a New Mercury Battery

Mercury Grand Marquis Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2003 Mercury Grand Marquis at Firestone Complete Auto Care.

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2003 Mercury Grand Marquis Battery Replacement & Size

Researching battery replacements for your Mercury Grand Marquis? Use the following chart to find information on Mercury Grand Marquis battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
65-1	V8/4.6L	Replacement 24 months	Performance months	850
65-2	V8/4.6L	Replacement 36 months	Performance months	850
65-AGM	V8/4.6L	Replacement 36 months	Performance months	750

BATTERIES
V8/4.6L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V8/4.6L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V8/4.6L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750

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Shopping for Mercury Grand Marquis Car Batteries

You can pretty much drive your Mercury Grand Marquis until you don't want to anymore. But your Grand Marquis's battery? Don't count on it to last forever. The average car battery lasts three to five years. You want to replace your 2003 Mercury Grand Marquis battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A lagging starter, a blinking battery or check engine light, bloated battery case, corroded battery terminals, or weak lights can all be signs that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. With best-in-class tools we can tell you how much "life" is left in your battery. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 2003 Mercury Grand Marquis running! Car batteries are only one of our many strong suits. Our technicians are familiar with Mercury-specific recommendations for Grand Marquis car batteries’ reserve capacities and cold cranking amps. Get help figuring out the battery size that's best for your Grand Marquis, and schedule a fast car battery replacement at your earliest convenience.

Find the Right DieHard Battery for Your Grand Marquis

We only want what’s best for your Mercury Grand Marquis, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations and house the latest technology to meet the increasing power needs of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your Mercury Grand Marquis and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 2003 Mercury Grand Marquis Battery

Have you recently had a fresh battery installed in your Mercury Grand Marquis? Good thinking! Give your new car battery the best start with proper care. Help extend your car battery’s life by decreasing the number of short trips you take, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked Grand Marquis Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a Grand Marquis-specific battery question, stop by your nearest store. Our technicians have the answers.

Why won’t my Grand Marquis battery hold a charge? A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop in for a free battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my old Grand Marquis battery? We recycle it, taking care of both your car and the Earth.
What’s the cost of DieHard batteries for Mercury Grand Marquiss? Mercury Grand Marquis batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.
How long do car batteries last? You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.
What is the white, crusty substance accumulating on my Grand Marquis’s battery post? The white, crusty stuff that can accumulate around Grand Marquis car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.
How do I clean a corroded Grand Marquis battery terminal? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Grand Marquis owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.
Who carries Grand Marquis batteries near me? Your local Firestone Complete Auto Care sells and installs Grand Marquis batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.