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

It’s usually normal for your check engine light to turn on upon ignition. This is just your Grand Marquis testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why is my Mercury Grand Marquis making engine noise?

Unusual noises can signal a problem with your Mercury Grand Marquis engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Mercury Grand Marquis engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Mercury Grand Marquis radiator?

It’s not recommended you put water in your Grand Marquis 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 the engine in my Grand Marquis to suddenly stop?

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

Who fixes Mercury Grand Marquis engines?

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

1998 Mercury Grand Marquis Engine Repair

Learn about

1998 Mercury Grand Marquis Trim Options

Select your Mercury Grand Marquis trim level to learn more about Mercury-recommended engine repair. Use the following chart to find information.

V8/4.6L

Repairs for Your 1998 Mercury Grand Marquis

Stuff wears out. Even your Mercury Grand Marquis'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 1998 Mercury Grand Marquis.

We Know Mercury Grand Marquis Engines

Mercury Grand Marquis drivers trust that their Grand Marquis will take them near and far. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Sometimes plans go sideways. When they do, you might find yourself searching for 1998 Mercury Grand Marquis engine repair or replacement parts. 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 Mercury Grand Marquis engine will be in good hands. 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.

Illuminated Check Engine Light on 1998 Mercury Grand Marquis

As soon as your Grand Marquis check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission system that won't go away on its own. Causes may include a faulty oxygen sensor, damaged spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your Grand Marquis in for an on-board diagnostic check and our expert techs will get the root of the problem. engine pinging noises, essential fluid leaks, or misfiring.

Engine Repairs for Your 1998 Grand Marquis

When your Mercury Grand Marquis engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure you know. If it's necessary for your safety, we'll make sure you understand that, too. We want to give you all the details you need to make an informed decision about your engine repairs. By choosing Firestone Complete Auto Care for Grand Marquis engine repairs and you can feel good knowing that we only use Mercury-compliant replacement parts such as the serpentine belt, oil gasket, fuses, or another part.

Questions About 1998 Mercury Grand Marquis Engines

Why does the check engine light come on when I start my Grand Marquis? It’s usually normal for your check engine light to turn on upon ignition. This is just your Grand Marquis testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why is my Mercury Grand Marquis making engine noise? Unusual noises can signal a problem with your Mercury Grand Marquis engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Mercury Grand Marquis engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Mercury Grand Marquis radiator? It’s not recommended you put water in your Grand Marquis 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 the engine in my Grand Marquis to suddenly stop? Reasons your Grand Marquis car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes Mercury Grand Marquis engines? Your local Firestone Complete Auto Care fixes Mercury Grand Marquis engines. Book an appointment today! We have thousands of locations across the country.