Why does the check engine light in my S15 turn on when I start my car?

It’s usually normal for your check engine light to turn on upon ignition. This is a sign that your vehicle is 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 GMC S15 making engine noise?

Strange under-the-hood noises can point to problems within your GMC S15 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal 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 GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC S15 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 put water in my GMC S15 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 S15 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my S15 engine suddenly stop?

There are different reasons your S15 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 GMC S15 engines?

Your local Firestone Complete Auto Care offers GMC S15 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

1984 GMC S15 Engine Repair

Learn about

1984 GMC S15 Trim Options

Select your GMC S15 trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

L4/1.9L

L4/2.0L

L4/2.2L

V6/2.8L

GMC S15 Repairs and Services

Stuff wears out. Even your GMC S15’s engine parts and components will change. 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 1984 GMC S15.

We Care for GMC S15 Engines

GMC S15 drivers trust that their S15 will take them near and far. That might be why you bought it in the first place. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. If they do, you’ll have to find a dependable 1984 GMC service center — quick! That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know GMC S15 engines. Schedule a courtesy inspection at the first sign of engine trouble. 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 1984 GMC S15

An illuminated check engine light on your GMC S15 is one of the first signs it's time to 'brake' for engine service. A check engine light that’s flashing or steadily illuminated could point to problems with your fuel injection, Causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or an engine vacuum leak, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your S15 issues diagnosed and our expert techs will get the root of the problem. rattling sounds, oil leaks, or engine misfiring.

1984 S15 Engine Services

If your 1984 GMC S15 needs engine repair, our technicians will provide you with a thorough explanation beforehand. 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 seek to give you all the info you need to make a smart decision about our services. Turn to Firestone Complete Auto Care for your 1984 S15 engine repairs and you can feel confident knowing that we use GMC-approved parts and components like the timing chain or belt, engine oil seal, fuses, or another part.

Questions About 1984 GMC S15 Engines

Why does the check engine light in my S15 turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. This is a sign that your vehicle is 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 GMC S15 making engine noise? Strange under-the-hood noises can point to problems within your GMC S15 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal 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 GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC S15 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 put water in my GMC S15 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 S15 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my S15 engine suddenly stop? There are different reasons your S15 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 GMC S15 engines? Your local Firestone Complete Auto Care offers GMC S15 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!