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

It’s usually normal for your check engine light to turn on upon ignition. This is just your Cougar testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Are Mercury Cougar engine noises bad?

Unusual noises can signal a problem with your Mercury Cougar 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 be traced back to 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 Cougar 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Mercury Cougar radiator?

It’s not recommended you put water in your Cougar 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 a Cougar engine to suddenly stop?

Your Cougar car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who repairs Mercury Cougar engines?

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

1990 Mercury Cougar Engine Repair

Learn about

1990 Mercury Cougar Trim Options

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

V6/3.8L

Mercury Cougar Repairs and Services

Stuff wears out. Even your Mercury Cougar’s engine parts and components will change. 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 1990 Mercury Cougar.

We Care for Mercury Cougar Engines

Mercury Cougar drivers trust that their Cougar will take them near and far. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 1990 Mercury Cougar engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Mercury Cougar engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 1990 Mercury Cougar Check Engine Light Is On

As soon as your Cougar check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your vehicle's ignition, Causes may include a faulty oxygen sensor, bad spark plug, a clogged catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your Cougar to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. Other signs it's time for Mercury Cougar engine service might include burning smells, or misfiring.

1990 Cougar Engine Services

If your 1990 Cougar engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We don't start working until we have your approval. If a service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. We seek to give you all the info you need to make a smart decision about our services. Choose Firestone Complete Auto Care for Mercury Cougar engine repairs and you can drive easy knowing that we use Mercury-approved parts and fluids — serpentine belt, motor oil seal, sensors, or a different component.

Engine Q&A 1990 Mercury Cougar

Why does my Cougar’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. This is just your Cougar testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Are Mercury Cougar engine noises bad? Unusual noises can signal a problem with your Mercury Cougar 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 be traced back to 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 Cougar 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Mercury Cougar radiator? It’s not recommended you put water in your Cougar 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 a Cougar engine to suddenly stop? Your Cougar car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who repairs Mercury Cougar engines? Your local Firestone Complete Auto Care fixes Mercury Cougar engines. Book an appointment today! We have thousands of locations across the country.