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

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Horizon testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Plymouth Horizon engine noises bad?

Strange engine sounds can be a sign something’s off in your Plymouth Horizon. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. 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 Plymouth engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Plymouth Horizon engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I use water in my Plymouth Horizon radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Horizon when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a Horizon engine to suddenly stop?

There are different reasons your Horizon vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who fixes Plymouth Horizon engines?

For Plymouth Horizon 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.

Engine Repairs for Your 1985 Plymouth Horizon

Learn about

1985 Plymouth Horizon Trim Options

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

L4/1.6L

L4/2.2L

Plymouth Horizon Repairs and Services

Nothing lasts forever. Even your Plymouth Horizon’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1985 Plymouth Horizon services.

We Know Plymouth Horizon Engines

The Plymouth Horizon is respected for its reliability. You may have even been thinking about that when you bought it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. If they do, you’ll have to find a dependable 1985 Plymouth service center — quick! 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 Plymouth Horizon 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.

Check Engine Light on 1985 Plymouth Horizon

As soon as your Horizon 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 combustion, Causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your Horizon to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. rattling sounds, burning smells, or engine misfiring.

1985 Horizon Engine Services

When your Plymouth Horizon 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. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for Horizon engine repairs and you can feel confident knowing that we use Plymouth-approved parts and components like the cambelt, valve guide seal, ignition coil, or another part.

Questions About 1985 Plymouth Horizon Engines

Why does the check engine light come on when I start my Horizon? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Horizon testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Plymouth Horizon engine noises bad? Strange engine sounds can be a sign something’s off in your Plymouth Horizon. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. 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 Plymouth engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Plymouth Horizon engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I use water in my Plymouth Horizon radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Horizon when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a Horizon engine to suddenly stop? There are different reasons your Horizon vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who fixes Plymouth Horizon engines? For Plymouth Horizon 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.