Why does the check engine light in my Marquis turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Marquis testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Mercury Marquis engine noises bad?

Unusual noises can signal a problem with your Mercury Marquis engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Mercury engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercury Marquis engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my Mercury Marquis 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.

Why did my Marquis engine suddenly stop?

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

Who repairs Mercury Marquis engines?

For Mercury Marquis engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

1985 Mercury Marquis Engine Repair

Learn about

1985 Mercury Marquis Trim Options

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

L4/2.3L

V6/3.8L

Mercury Marquis Repairs and Services

Nothing lasts forever. Even your Mercury Marquis's many parts and pieces. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 1985 Mercury Marquis.

We Care for Mercury Marquis Engines

The Mercury Marquis is respected for its reliability. That might be why you bought it in the first place. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 1985 Mercury 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 Marquis engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 1985 Mercury Marquis

If your Marquis 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 fuel, Possible causes can include a failing oxygen sensor, bad spark plug, issues with your 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 Marquis issues diagnosed and we'll determine exactly why your check engine light is on. rattling sounds, essential fluid leaks, or engine misfiring.

1985 Marquis Engine Services

If your 1985 Mercury Marquis needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. 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 seek to give you all the info you need to make a smart decision about our services. By choosing Firestone Complete Auto Care for Marquis engine repairs and you can feel confident knowing that we use Mercury-approved parts and components like the timing chain or belt, motor oil seal, ignition coil, or a different component.

Engine Q&A 1985 Mercury Marquis

Why does the check engine light in my Marquis turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Marquis testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Mercury Marquis engine noises bad? Unusual noises can signal a problem with your Mercury Marquis engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Mercury engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercury Marquis engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my Mercury Marquis 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.
Why did my Marquis engine suddenly stop? Reasons your Marquis car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs Mercury Marquis engines? For Mercury Marquis engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.