Why does my Mariner’s check engine light come on when I start it?

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

Why does my Mercury engine sound different?

Unusual noises can signal a problem with your Mercury Mariner 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 be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

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

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I use water in my Mercury Mariner radiator?

While it’s not recommended, you can use water in your Mariner radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What can cause a Mariner engine to suddenly stop?

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

Who can repair my Mercury Mariner engine?

Your local Firestone Complete Auto Care offers Mercury Mariner engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Engine Repairs for Your 2007 Mercury Mariner

Learn about

2007 Mercury Mariner Trim Options

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

L4/2.3L

V6/3.0L

L4/2.3L

V6/3.0L

Mercury Mariner Repairs and Services

Stuff wears out. Even your Mercury Mariner’s engine parts and components will change. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 2007 Mercury Mariner.

We’re Trained to Care for Mercury Mariner Engines

Mercury Mariner engines are known for their reliability. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. When they do, you might find yourself searching for 2007 Mercury Mariner engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Mercury Mariner engines. 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 2007 Mercury Mariner

An illuminated check engine light on your Mercury Mariner 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 car’s starter, Causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your Mariner in for an on-board diagnostic check and our expert techs will get the root of the problem. rattling sounds, essential fluid leaks, or misfiring.

2007 Mariner Engine Services

When your Mercury Mariner engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We don't start working until we have your approval. 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 seek to give you all the info you need to make a smart decision about our services. By choosing Firestone Complete Auto Care for Mariner engine repairs and you can drive easy knowing that we use Mercury-approved parts and fluids — timing chain or belt, engine oil seal, ignition coil, or a different component.

2007 Mercury Mariner Engine Q&A

Why does my Mariner’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. It’s just your Mariner firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my Mercury engine sound different? Unusual noises can signal a problem with your Mercury Mariner 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 be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Mercury engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercury Mariner engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I use water in my Mercury Mariner radiator? While it’s not recommended, you can use water in your Mariner radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What can cause a Mariner engine to suddenly stop? Reasons your Mariner car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who can repair my Mercury Mariner engine? Your local Firestone Complete Auto Care offers Mercury Mariner engine repair. Schedule an appointment today at one of our thousands of locations nationwide!