Why does the check engine light in my C3500 turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your C3500 firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why is my GMC C3500 making engine noise?

Strange under-the-hood noises can point to problems within your GMC C3500 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 a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC C3500 engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I put water in my GMC C3500 radiator?

While it’s not recommended, you can use water in your C3500 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 can cause the engine in my C3500 to suddenly stop?

If your C3500 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Where can I go for GMC C3500 repair?

Your local Firestone Complete Auto Care fixes GMC C3500 engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 1984 GMC C3500

Learn about

1984 GMC C3500 Trim Options

Select your GMC C3500 trim level to learn more about GMC-recommended engine repair. Use the following chart to find information.

L6/4.8L

V8/5.7L

V8/6.2L

V8/7.4L

1984 GMC C3500 Repair

Nothing stays the same forever. Even your GMC C3500’s engine parts and components will change. We’re here to help when something stops working. Click on a repair below to learn more about 1984 GMC C3500 repairs.

We Know GMC C3500 Engines

GMC C3500 engines are known for their reliability. You may have even been thinking about that when you bought it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 1984 GMC C3500 engine repair or replacement parts. 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 C3500 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 1984 GMC C3500

An illuminated check engine light on your GMC C3500 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 control system that won’t go away on its own. Possible causes can include a failing oxygen sensor, worn spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your C3500 issues diagnosed and we’ll figure out why that check engine light is giving you grief. engine rattling, oil leaks, or misfiring.

Engine Repairs for Your 1984 C3500

When your GMC C3500 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. If a repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We seek to give you all the info you need to make a smart decision about our services. By choosing Firestone Complete Auto Care for C3500 engine repairs and you can drive easy knowing that we use GMC-approved parts and fluids — timing belt, engine oil seal, fuses, or other parts.

Questions About 1984 GMC C3500 Engines

Why does the check engine light in my C3500 turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your C3500 firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why is my GMC C3500 making engine noise? Strange under-the-hood noises can point to problems within your GMC C3500 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 a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC C3500 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I put water in my GMC C3500 radiator? While it’s not recommended, you can use water in your C3500 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 can cause the engine in my C3500 to suddenly stop? If your C3500 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Where can I go for GMC C3500 repair? Your local Firestone Complete Auto Care fixes GMC C3500 engines. Book an appointment today! We have thousands of locations across the country.