Why does my R1500 Suburban’s check engine light come on when I start it?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your R1500 Suburban firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why does my GMC engine sound different?

Strange under-the-hood noises can point to problems within your GMC R1500 Suburban engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my GMC R1500 Suburban 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 pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I add water to my GMC R1500 Suburban radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What can cause a R1500 Suburban engine to suddenly stop?

Your R1500 Suburban car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes GMC R1500 Suburban engines?

Your local Firestone Complete Auto Care fixes GMC R1500 Suburban engines. Book an appointment today! We have thousands of locations across the country.

Reliable Repairs for 1991 GMC R1500 Suburban Engines

Learn about

1991 GMC R1500 Suburban Trim Options

Select your GMC R1500 Suburban trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

V8/5.7L

V8/6.2L

GMC R1500 Suburban Repairs and Services

Nothing stays the same forever. Even your GMC R1500 Suburban'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 1991 GMC R1500 Suburban.

We’re Trained to Care for GMC R1500 Suburban Engines

GMC R1500 Suburban drivers trust that their R1500 Suburban will take them near and far. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 1991 GMC R1500 Suburban engine repairs. 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 R1500 Suburban engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Illuminated Check Engine Light on 1991 GMC R1500 Suburban

An illuminated check engine light on your GMC R1500 Suburban is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission control system that won’t go away on its own. Causes may include a faulty oxygen sensor, damaged spark plug, a problem with your catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Bring your R1500 Suburban to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. Other signs your GMC R1500 Suburban engine needs some TLC are burning smells, or misfiring.

1991 R1500 Suburban Engine Services

If your 1991 R1500 Suburban engine needs repairs, 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 repair isn’t urgent right now, we’ll let 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. Choose Firestone Complete Auto Care for GMC R1500 Suburban engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the timing chain or belt, valve guide seal, fuses, or a different component.

Engine Q&A 1991 GMC R1500 Suburban

Why does my R1500 Suburban’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. It’s just your R1500 Suburban firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why does my GMC engine sound different? Strange under-the-hood noises can point to problems within your GMC R1500 Suburban engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my GMC R1500 Suburban 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 pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I add water to my GMC R1500 Suburban radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What can cause a R1500 Suburban engine to suddenly stop? Your R1500 Suburban car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes GMC R1500 Suburban engines? Your local Firestone Complete Auto Care fixes GMC R1500 Suburban engines. Book an appointment today! We have thousands of locations across the country.