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

It's okay if your check engine light comes on when you first start your vehicle. It’s just your Grand Marquis firing up 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?

Strange under-the-hood noises can point to problems within your Mercury Grand Marquis engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have 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, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Can I add water to 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.

Why did my Grand Marquis engine suddenly stop?

If your Grand Marquis car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who repairs Mercury Grand Marquis engines?

Your local Firestone Complete Auto Care has you covered with expert Grand Marquis engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 1989 Mercury Grand Marquis

Learn about

1989 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.

V8/5.0L

V8/5.8L

Repairs for Your 1989 Mercury Grand Marquis

Nothing stays the same forever. Even your Mercury Grand Marquis’s engine parts and components will change. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 1989 Mercury Grand Marquis.

We Know Mercury Grand Marquis Engines

The Mercury Grand Marquis is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 1989 Mercury Grand Marquis engine repairs. That's when it's time to head to Firestone Complete Auto Care. We've serviced more than 500 million vehicles since 1926, and our technicians know Mercury Grand Marquis engines. 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.

Check Engine Light on 1989 Mercury Grand Marquis

An illuminated check engine light on your Mercury Grand Marquis is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission control system that won’t go away on its own. Possible causes can include a failing oxygen sensor, damaged spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few possible causes. Stop by your local Firestone Complete Auto Care to get your Grand Marquis issues diagnosed and we’ll figure out why that check engine light is giving you grief. engine rattling, burning smells, or engine misfiring.

Engine Repairs for Your 1989 Grand Marquis

If your 1989 Mercury Grand Marquis 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. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to give you all the details you need to make an informed decision about your engine repairs. Turn to Firestone Complete Auto Care for your 1989 Grand Marquis engine repairs and you can feel confident knowing that we use Mercury-approved parts and components like the cambelt, oil gasket, ignition coil, or other parts.

1989 Mercury Grand Marquis Engine Q&A

Why does the check engine light come on when I start my Grand Marquis? It's okay if your check engine light comes on when you first start your vehicle. It’s just your Grand Marquis firing up 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? Strange under-the-hood noises can point to problems within your Mercury Grand Marquis engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have 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, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Can I add water to 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.
Why did my Grand Marquis engine suddenly stop? If your Grand Marquis car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who repairs Mercury Grand Marquis engines? Your local Firestone Complete Auto Care has you covered with expert Grand Marquis engine repair. Schedule an appointment today and see us at one of our thousands of locations.