Why does the check engine light in my Wrangler turn on when I start my car?

It’s usually normal for your check engine light to turn on upon ignition. It’s just your Wrangler firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Jeep Wrangler engine noises bad?

Unusual noises can signal a problem with your Jeep Wrangler engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

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

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my Jeep Wrangler radiator?

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

There are different reasons your Wrangler 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 can repair my Jeep Wrangler engine?

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

Engine Repairs for Your 1990 Jeep Wrangler

Learn about

1990 Jeep Wrangler Trim Options

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

L4/2.5L

L6/4.2L

Jeep Wrangler Repairs and Services

Stuff wears out. Even your Jeep Wrangler’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 1990 Jeep Wrangler repairs.

We Care for Jeep Wrangler Engines

Jeep Wrangler engines are known for their reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 1990 Jeep Wrangler 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 Wrangler engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 1990 Jeep Wrangler

If your Wrangler check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your vehicle's ignition, Potential causes may include a faulty oxygen sensor, bad spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your Wrangler issues diagnosed and we’ll figure out why that check engine light is giving you grief. Other signs it's time for Jeep Wrangler engine service might include burning smells, or misfiring.

Engine Repairs for Your 1990 Wrangler

When your Jeep Wrangler engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a repair isn’t urgent right now, we’ll let 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 Jeep Wrangler engine repairs and you can feel confident knowing that we use Jeep-approved parts and components like the timing chain or belt, valve guide seal, ignition coil, or a different component.

1990 Jeep Wrangler Engine Q&A

Why does the check engine light in my Wrangler turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. It’s just your Wrangler firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Jeep Wrangler engine noises bad? Unusual noises can signal a problem with your Jeep Wrangler engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Jeep engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Jeep Wrangler engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my Jeep Wrangler radiator? It’s not recommended you put water in your Wrangler 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 Wrangler engine to suddenly stop? There are different reasons your Wrangler 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 can repair my Jeep Wrangler engine? Your local Firestone Complete Auto Care offers Jeep Wrangler engine repair. Schedule an appointment today at one of our thousands of locations nationwide!