Why does my S15 Jimmy’s check engine light come on when I start it?

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 light should go off shortly. Bring your vehicle in if it doesn't.

Why does my GMC engine sound different?

Strange engine sounds can be a sign something’s off in your GMC S15 Jimmy. 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 Jimmy 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my GMC S15 Jimmy 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 Jimmy when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a S15 Jimmy engine to suddenly stop?

Reasons your S15 Jimmy car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who fixes GMC S15 Jimmy engines?

Your local Firestone Complete Auto Care fixes GMC S15 Jimmy engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 1990 GMC S15 Jimmy

Learn about

1990 GMC S15 Jimmy Trim Options

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

V6/4.3L

1990 GMC S15 Jimmy Repair

Nothing stays the same forever. Even your GMC S15 Jimmy's many parts and pieces. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 1990 GMC S15 Jimmy.

We Care for GMC S15 Jimmy Engines

GMC S15 Jimmy engines are known for their reliability. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. When they do, you might find yourself searching for 1990 GMC S15 Jimmy engine repair or replacement parts. That's when it's time to head to Firestone Complete Auto Care. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service GMC S15 Jimmy 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.

Check Engine Light on 1990 GMC S15 Jimmy

An illuminated check engine light on your GMC S15 Jimmy 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 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 an engine vacuum leak, to name a few possible causes. Bring your S15 Jimmy in for an on-board diagnostic check and our expert techs will get the root of the problem. engine pinging noises, essential fluid leaks, or engine misfiring.

1990 S15 Jimmy Engine Services

If your 1990 S15 Jimmy engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. 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. By choosing Firestone Complete Auto Care for S15 Jimmy engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the timing chain or belt, oil gasket, sensors, or another part.

Questions About 1990 GMC S15 Jimmy Engines

Why does my S15 Jimmy’s check engine light come on when I start it? 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 light should go off shortly. Bring your vehicle in if it doesn't.
Why does my GMC engine sound different? Strange engine sounds can be a sign something’s off in your GMC S15 Jimmy. 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 Jimmy 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my GMC S15 Jimmy 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 Jimmy when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a S15 Jimmy engine to suddenly stop? Reasons your S15 Jimmy car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes GMC S15 Jimmy engines? Your local Firestone Complete Auto Care fixes GMC S15 Jimmy engines. Book an appointment today! We have thousands of locations across the country.