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

It's okay if your check engine light comes on when you first start your vehicle. It’s just your Comanche firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Are Jeep Comanche engine noises bad?

Strange engine sounds can be a sign something’s off in your Jeep Comanche. 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 indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my Jeep Comanche 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I use water in my Jeep Comanche 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 Comanche when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my Comanche to suddenly stop?

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

Who can repair my Jeep Comanche engine?

For Jeep Comanche 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 1989 Jeep Comanche

Learn about

1989 Jeep Comanche Trim Options

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

L4/2.5L

L6/4.0L

Jeep Comanche Repairs and Services

Nothing stays the same forever. Even your Jeep Comanche’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 1989 Jeep Comanche services.

We Care for Jeep Comanche Engines

Jeep Comanche drivers trust that their Comanche will take them near and far. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 1989 Jeep Comanche 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 millions of vehicles since 1926, and our professional technicians are trained to service Jeep Comanche 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 1989 Jeep Comanche Check Engine Light Is On

If your Comanche check engine light is on, it’s time to get it looked at. A steady or flashing check engine light could signal a serious issue with your fuel injection, Causes may include a faulty oxygen sensor, bad spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your Comanche issues diagnosed and our expert techs will get the root of the problem. rattling sounds, oil leaks, or a sinking feeling that something’s wrong.

1989 Comanche Engine Services

When your Jeep Comanche engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to give you all the details you need to make an informed decision about your engine repairs. By choosing Firestone Complete Auto Care for Comanche engine repairs and you can feel good knowing that we only use Jeep-compliant replacement parts such as the cambelt, oil gasket, ignition coil, or other parts.

1989 Jeep Comanche Engine Q&A

Why does my Comanche’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. It’s just your Comanche firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Are Jeep Comanche engine noises bad? Strange engine sounds can be a sign something’s off in your Jeep Comanche. 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 indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my Jeep Comanche 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I use water in my Jeep Comanche 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 Comanche when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my Comanche to suddenly stop? Your Comanche car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who can repair my Jeep Comanche engine? For Jeep Comanche 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.