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

It's okay if your check engine light comes on when you first start your vehicle. 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?

Unusual noises can signal a problem with your GMC Jimmy 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 a sign of brake problems rather than engine issues.

What could damage my GMC Jimmy engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I put water in my GMC Jimmy radiator?

It’s not recommended you put water in your Jimmy 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.

Why did my Jimmy engine suddenly stop?

Your Jimmy car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who can repair my GMC Jimmy engine?

For GMC Jimmy 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.

Reliable Repairs for 1991 GMC Jimmy Engines

Learn about

1991 GMC Jimmy Trim Options

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

V8/5.7L

V8/6.2L

Repairs for Your 1991 GMC Jimmy

Nothing lasts forever. Even your GMC Jimmy's many parts and pieces. We’re here to help when something stops working. Select a repair or category to learn more about 1991 GMC Jimmy services.

We’re Trained to Care for GMC Jimmy Engines

GMC Jimmy drivers trust that their Jimmy will take them near and far. 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. When they do, you might find yourself searching for 1991 GMC Jimmy engine repair or replacement parts. 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 GMC Jimmy engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Check Engine Light on 1991 GMC Jimmy

If your Jimmy check engine light is on, it’s time to get it looked at. A check engine light that’s on or flashing could be a symptom of a serious problem in your fuel, Potential causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Stop by your local Firestone Complete Auto Care to get your Jimmy issues diagnosed and we'll determine exactly why your check engine light is on. Other signs your GMC Jimmy engine needs some TLC are burning smells, or misfiring.

1991 Jimmy Engine Services

If your 1991 Jimmy engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We don't start working until we have your approval. 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. Choose Firestone Complete Auto Care for GMC Jimmy engine repairs and you can feel confident knowing that we use GMC-approved parts and components like the serpentine belt, engine oil seal, sensors, or a different component.

1991 GMC Jimmy Engine Q&A

Why does the check engine light in my Jimmy turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. 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? Unusual noises can signal a problem with your GMC Jimmy 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 a sign of brake problems rather than engine issues.
What could damage my GMC Jimmy engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I put water in my GMC Jimmy radiator? It’s not recommended you put water in your Jimmy 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.
Why did my Jimmy engine suddenly stop? Your Jimmy car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who can repair my GMC Jimmy engine? For GMC Jimmy 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.