Why does the check engine light come on when I start my G3500?

It's okay if your check engine light comes on when you first start your vehicle. This is just your G3500 testing 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 G3500 engine. Tapping or knocking could mean you're low on 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 a sign of brake problems rather than engine issues.

What could damage my GMC G3500 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my GMC G3500 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 could cause my G3500 engine to suddenly stop?

There are different reasons your G3500 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 fixes GMC G3500 engines?

Your local Firestone Complete Auto Care has you covered with expert G3500 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

1989 GMC G3500 Engine Repair

Learn about

1989 GMC G3500 Trim Options

Select your GMC G3500 trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

V6/4.3L

V8/5.7L

V8/6.2L

V8/7.4L

GMC G3500 Repairs and Services

Nothing lasts forever. Even your GMC G3500'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 1989 GMC G3500.

We Care for GMC G3500 Engines

GMC G3500 engines are known for their reliability. That might be why you bought it in the first place. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 1989 GMC G3500 engine repairs. That's when it's time to head to Firestone Complete Auto Care. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your GMC G3500 engine will be in good hands. 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 1989 GMC G3500

If your G3500 check engine light is on, it’s time to get it looked at. 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, worn spark plug, a clogged catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your G3500 in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine rattling, essential fluid leaks, or a sinking feeling that something’s wrong.

GMC G3500 Engine Repair

If your 1989 G3500 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. 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. Choose Firestone Complete Auto Care for GMC G3500 engine repairs and you can drive easy knowing that we use GMC-approved parts and fluids — cambelt, motor oil seal, sensors, or another part.

1989 GMC G3500 Engine Q&A

Why does the check engine light come on when I start my G3500? It's okay if your check engine light comes on when you first start your vehicle. This is just your G3500 testing 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 G3500 engine. Tapping or knocking could mean you're low on 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 a sign of brake problems rather than engine issues.
What could damage my GMC G3500 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my GMC G3500 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 could cause my G3500 engine to suddenly stop? There are different reasons your G3500 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 fixes GMC G3500 engines? Your local Firestone Complete Auto Care has you covered with expert G3500 engine repair. Schedule an appointment today and see us at one of our thousands of locations.