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

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 Mercury Grand Marquis engine noises bad?

Strange engine sounds can be a sign something’s off in your Mercury Grand Marquis. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

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

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.

Can I use water in my Mercury Grand 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.

What can cause a Grand Marquis engine to 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.

Where can I go for Mercury Grand Marquis repair?

For Mercury Grand 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.

Reliable Repairs for 1983 Mercury Grand Marquis Engines

Learn about

1983 Mercury Grand Marquis Trim Options

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

V8/5.0L

V8/5.8L

1983 Mercury Grand Marquis Repair

Nothing lasts forever. Even your Mercury Grand Marquis’s engine parts and components will change. When something breaks, we're ready. Click on a repair below to learn more about 1983 Mercury Grand Marquis repairs.

We’re Trained to Care for Mercury Grand Marquis Engines

The Mercury Grand Marquis is respected for its reliability. That might be why you bought it in the first place. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1983 Mercury service center — quick! That's when it's time to head to Firestone Complete Auto Care. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Mercury Grand Marquis engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 1983 Mercury Grand Marquis Check Engine Light Is On

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 steady or flashing check engine light could signal a serious issue with your fuel, Possible causes can include a failing oxygen sensor, bad spark plug, a problem with your catalytic converter, or an engine vacuum leak, 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. Other signs it's time for Mercury Grand Marquis engine service might include burning smells, or misfiring.

1983 Grand Marquis Engine Services

If your 1983 Grand Marquis engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. 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 1983 Grand Marquis engine repairs and you can feel good knowing that we only use Mercury-compliant replacement parts such as the timing belt, engine oil seal, sensors, or other parts.

Engine Q&A 1983 Mercury Grand Marquis

Why does the check engine light in my Grand Marquis turn on when I start my car? 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 Mercury Grand Marquis engine noises bad? Strange engine sounds can be a sign something’s off in your Mercury Grand Marquis. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a Mercury engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercury Grand Marquis engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.
Can I use water in my Mercury Grand 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.
What can cause a Grand Marquis engine to 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.
Where can I go for Mercury Grand Marquis repair? For Mercury Grand 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.