Why does my J20’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Are Jeep J20 engine noises bad?

Strange under-the-hood noises can point to problems within your Jeep J20 engine. 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 be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Jeep J20 engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, 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 add water to my Jeep J20 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 J20 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my J20 engine to 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.

Who repairs Jeep J20 engines?

Your local Firestone Complete Auto Care has you covered with expert J20 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 1987 Jeep J20 Engines

Learn about

1987 Jeep J20 Trim Options

Select your Jeep J20 trim level to learn more about Jeep-recommended engine repair. Even Jeep J20 parts will get older and change.

V8/5.9L

Repairs for Your 1987 Jeep J20

Nothing stays the same forever. Even your Jeep J20's many parts and pieces. When something breaks or fails, we’re ready to help. Select a service or repair below to learn more about what we can do for your 1987 Jeep J20.

We Care for Jeep J20 Engines

Jeep J20 engines are known for their reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1987 Jeep 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 Jeep J20 engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 1987 Jeep J20 Check Engine Light Is On

As soon as your J20 check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission system, and it won’t go away by ignoring it. Possible causes can include a failing oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your J20 in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs your Jeep J20 engine needs some TLC are oil leaks, or misfiring.

Jeep J20 Engine Repair

When your Jeep J20 engine needs repairs, 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. 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. Turn to Firestone Complete Auto Care for your 1987 J20 engine repairs and you can feel good knowing that we only use Jeep-compliant replacement parts such as the cambelt, engine oil seal, ignition coil, or other parts.

1987 Jeep J20 Engine Q&A

Why does my J20’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Are Jeep J20 engine noises bad? Strange under-the-hood noises can point to problems within your Jeep J20 engine. 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 be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Jeep J20 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, 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 add water to my Jeep J20 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 J20 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my J20 engine to 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.
Who repairs Jeep J20 engines? Your local Firestone Complete Auto Care has you covered with expert J20 engine repair. Schedule an appointment today and see us at one of our thousands of locations.