Why does the check engine light in my R1500 Suburban turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your R1500 Suburban testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my GMC R1500 Suburban making engine noise?

Strange engine sounds can be a sign something’s off in your GMC R1500 Suburban. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. 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 a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC R1500 Suburban 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Can I use water in my GMC R1500 Suburban radiator?

While it’s not recommended, you can use water in your R1500 Suburban radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What could cause my R1500 Suburban engine to suddenly stop?

There are different reasons your R1500 Suburban vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who repairs GMC R1500 Suburban engines?

For GMC R1500 Suburban 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.

1990 GMC R1500 Suburban Engine Repair

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1990 GMC R1500 Suburban Trim Options

Select your GMC R1500 Suburban trim level to learn more about GMC-recommended engine repair. Even GMC R1500 Suburban parts will get older and change.

V8/5.7L

V8/6.2L

1990 GMC R1500 Suburban Repair

Nothing stays the same forever. Even your GMC R1500 Suburban’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 1990 GMC R1500 Suburban repairs.

We Know GMC R1500 Suburban Engines

GMC R1500 Suburban drivers trust that their R1500 Suburban will take them near and far. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Things can go wrong on the road. When they do, you might find yourself searching for 1990 GMC R1500 Suburban 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 millions of vehicles since 1926, and our professional technicians are trained to service GMC R1500 Suburban 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.

Check Engine Light on 1990 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 steady or flashing check engine light could signal a serious issue with your car’s ignition, Causes may include a faulty oxygen sensor, worn spark plug, a problem 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 R1500 Suburban issues diagnosed and our expert techs will get the root of the problem. Other signs your GMC R1500 Suburban engine needs some TLC are oil leaks, or engine misfiring.

GMC R1500 Suburban Engine Repair

If your 1990 GMC R1500 Suburban needs engine repair, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. If a repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 1990 R1500 Suburban engine repairs and you can feel confident knowing that we use GMC-approved parts and components like the cambelt, oil gasket, fuses, or another part.

Engine Q&A 1990 GMC R1500 Suburban

Why does the check engine light in my R1500 Suburban turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your R1500 Suburban testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my GMC R1500 Suburban making engine noise? Strange engine sounds can be a sign something’s off in your GMC R1500 Suburban. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. 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 a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC R1500 Suburban 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Can I use water in my GMC R1500 Suburban radiator? While it’s not recommended, you can use water in your R1500 Suburban radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What could cause my R1500 Suburban engine to suddenly stop? There are different reasons your R1500 Suburban vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who repairs GMC R1500 Suburban engines? For GMC R1500 Suburban 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.