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.

Why is my GMC G1500 making engine noise?

Unusual noises can signal a problem with your GMC G1500 engine. Tapping or knocking could mean you're low on 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 could be a sign that something is wrong with your brakes — not the engine.

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

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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 G1500 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 the engine in my G1500 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 repairs GMC G1500 engines?

Your local Firestone Complete Auto Care offers GMC G1500 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Engine Repairs for Your 1990 GMC G1500

Learn about

1990 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

1990 GMC G1500 Repair

Nothing stays the same forever. Even your GMC G1500's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1990 GMC G1500 services.

We’re Trained to 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 sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 1990 GMC G1500 engine repairs. That's when it's time to head to Firestone Complete Auto Care. We've serviced more than 500 million vehicles since 1926, and our technicians know GMC G1500 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.

My 1990 GMC G1500 Check Engine Light Is On

As soon as your G1500 check engine light turns on, it’s time to get an expert’s opinion. A steady or flashing check engine light could signal a serious issue with your vehicle's ignition, Potential 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. Stop by your local Firestone Complete Auto Care to get your G1500 issues diagnosed and we’ll figure out why that check engine light is giving you grief. Other signs it's time for GMC G1500 engine service might include oil leaks, or misfiring.

1990 G1500 Engine Services

If your 1990 G1500 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. 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. Choose Firestone Complete Auto Care for GMC G1500 engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the cambelt, motor oil seal, ignition coil, or other parts.

1990 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.
Why is my GMC G1500 making engine noise? Unusual noises can signal a problem with your GMC G1500 engine. Tapping or knocking could mean you're low on 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 could be a sign that something is wrong with your brakes — not the engine.
What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC G1500 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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 G1500 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 the engine in my G1500 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 repairs GMC G1500 engines? Your local Firestone Complete Auto Care offers GMC G1500 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!