Why does the check engine light come on when I start my G1500?

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 turn off in a bit, but come see us if it doesn't.

Are GMC G1500 engine noises bad?

Strange under-the-hood noises can point to problems within your GMC G1500 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 be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC G1500 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I use water in my GMC G1500 radiator?

It’s not recommended you put water in your G1500 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.

What could cause my G1500 engine to suddenly stop?

Reasons your G1500 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who can repair my GMC G1500 engine?

Your local Firestone Complete Auto Care has you covered with expert G1500 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 1991 GMC G1500 Engines

Learn about

1991 GMC G1500 Trim Options

Select your GMC G1500 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

Repairs for Your 1991 GMC G1500

Stuff wears out. Even your GMC G1500'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 G1500 services.

We Care for GMC G1500 Engines

GMC G1500 engines are known for their reliability. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 1991 GMC G1500 engine repairs. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service GMC G1500 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.

My 1991 GMC G1500 Check Engine Light Is On

An illuminated check engine light on your GMC G1500 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 that won't go away on its own. Potential causes may include a faulty oxygen sensor, damaged spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your G1500 issues diagnosed and our expert techs will get the root of the problem. engine pinging noises, oil leaks, or a sinking feeling that something’s wrong.

1991 G1500 Engine Services

If your 1991 GMC G1500 needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. 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 G1500 engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the serpentine belt, engine oil seal, ignition coil, or other parts.

1991 GMC G1500 Engine Q&A

Why does the check engine light come on when I start my G1500? 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 turn off in a bit, but come see us if it doesn't.
Are GMC G1500 engine noises bad? Strange under-the-hood noises can point to problems within your GMC G1500 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 be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC G1500 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I use water in my GMC G1500 radiator? It’s not recommended you put water in your G1500 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.
What could cause my G1500 engine to suddenly stop? Reasons your G1500 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who can repair my GMC G1500 engine? Your local Firestone Complete Auto Care has you covered with expert G1500 engine repair. Schedule an appointment today and see us at one of our thousands of locations.