Why does the check engine light come on when I start my J20?

It's okay if your check engine light comes on when you first start your vehicle. This is just your J20 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my Jeep J20 making engine noise?

Strange engine sounds can be a sign something’s off in your Jeep J20. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Jeep engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Jeep J20 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 slamming the gas pedal while the engine is still cold. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I put water in my Jeep J20 radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

Why did my J20 engine suddenly stop?

Reasons your J20 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Where can I go for Jeep J20 repair?

For Jeep J20 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 1988 Jeep J20

Learn about

1988 Jeep J20 Trim Options

Select your Jeep J20 trim level to learn more about Jeep-recommended engine repair. Use the following chart to find information.

V8/5.9L

Repairs for Your 1988 Jeep J20

Nothing lasts forever. Even your Jeep J20's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1988 Jeep J20 services.

We Know Jeep J20 Engines

The Jeep J20 is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 1988 Jeep J20 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 Jeep J20 engines. Schedule an appointment if you're experiencing problems that could require engine repair. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Illuminated Check Engine Light on 1988 Jeep J20

An illuminated check engine light on your Jeep J20 is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your combustion, Potential causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your J20 to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. engine rattling, essential fluid leaks, or misfiring.

Engine Repairs for Your 1988 J20

If your 1988 Jeep J20 needs engine repair, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair isn’t urgent right now, 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 J20 engine repairs and you can feel good knowing that we only use Jeep-compliant replacement parts such as the timing chain or belt, valve guide seal, ignition coil, or another part.

Questions About 1988 Jeep J20 Engines

Why does the check engine light come on when I start my J20? It's okay if your check engine light comes on when you first start your vehicle. This is just your J20 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my Jeep J20 making engine noise? Strange engine sounds can be a sign something’s off in your Jeep J20. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Jeep engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Jeep J20 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 slamming the gas pedal while the engine is still cold. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I put water in my Jeep J20 radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
Why did my J20 engine suddenly stop? Reasons your J20 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Where can I go for Jeep J20 repair? For Jeep J20 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.