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

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

Are Mercury Cougar engine noises bad?

Strange engine sounds can be a sign something’s off in your Mercury Cougar. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have 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 my Mercury Cougar 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Can I use 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.

Why did my Cougar engine 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.

Engine Repairs for Your 1985 Mercury Cougar

Learn about

1985 Mercury Cougar Trim Options

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

L4/2.3L

V6/3.8L

V8/5.0L

Mercury Cougar Repairs and Services

Stuff wears out. Even your Mercury Cougar’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 1985 Mercury Cougar services.

We’re Trained to 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 sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 1985 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 is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Illuminated Check Engine Light on 1985 Mercury Cougar

If your Cougar 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 car’s starter, Possible causes can include a failing oxygen sensor, bad spark plug, a clogged catalytic converter, or a leaking 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 we’ll figure out why that check engine light is giving you grief. rattling sounds, oil leaks, or engine misfiring.

Mercury Cougar Engine Repair

If your 1985 Mercury Cougar 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 can wait, 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 Cougar engine repairs and you can feel confident knowing that we use Mercury-approved parts and components like the timing belt, oil gasket, sensors, or other parts.

Engine Q&A 1985 Mercury Cougar

Why does the check engine light come on when I start my Cougar? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Cougar testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Mercury Cougar engine noises bad? Strange engine sounds can be a sign something’s off in your Mercury Cougar. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have 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 my Mercury Cougar 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Can I use 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.
Why did my Cougar engine 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.