Why does the check engine light in my K1500 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 is my GMC K1500 making engine noise?

Strange engine sounds can be a sign something’s off in your GMC K1500. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my GMC K1500 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 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 add water to my GMC K1500 radiator?

It’s not recommended you put water in your K1500 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 K1500 engine suddenly stop?

Your K1500 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 K1500 engine?

Your local Firestone Complete Auto Care has you covered with expert K1500 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 1991 GMC K1500 Engines

Learn about

1991 GMC K1500 Trim Options

Select your GMC K1500 trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

V6/4.3L

V8/5.0L

V8/5.7L

V8/6.2L

GMC K1500 Repairs and Services

Nothing stays the same forever. Even your GMC K1500's many parts and pieces. We’re here to help when something stops working. Click on a repair below to learn more about 1991 GMC K1500 repairs.

We’re Trained to Care for GMC K1500 Engines

The GMC K1500 is respected for its reliability. That might be why you bought it in the first place. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 1991 GMC K1500 engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your GMC K1500 engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Illuminated Check Engine Light on 1991 GMC K1500

If your K1500 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 combustion, Causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or an engine vacuum leak, to name a few potential sources. Bring your K1500 in for an on-board diagnostic check and our expert techs will get the root of the problem. engine rattling, oil leaks, or misfiring.

GMC K1500 Engine Repair

If your 1991 K1500 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure you know. If it's necessary for your safety, we'll make sure you understand that, too. We want to give you all the details you need to make an informed decision about your engine repairs. By choosing Firestone Complete Auto Care for K1500 engine repairs and you can feel confident knowing that we use GMC-approved parts and components like the serpentine belt, oil gasket, ignition coil, or a different component.

Questions About 1991 GMC K1500 Engines

Why does the check engine light in my K1500 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 is my GMC K1500 making engine noise? Strange engine sounds can be a sign something’s off in your GMC K1500. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my GMC K1500 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 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 add water to my GMC K1500 radiator? It’s not recommended you put water in your K1500 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 K1500 engine suddenly stop? Your K1500 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 K1500 engine? Your local Firestone Complete Auto Care has you covered with expert K1500 engine repair. Schedule an appointment today and see us at one of our thousands of locations.