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

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 dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are GMC G3500 engine noises bad?

Strange engine sounds can be a sign something’s off in your GMC G3500. 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 a sign of brake problems rather than engine issues.

What could damage my GMC G3500 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my GMC G3500 radiator?

It’s not recommended you put water in your G3500 radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

What could cause my G3500 engine to suddenly stop?

Your G3500 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who repairs GMC G3500 engines?

Your local Firestone Complete Auto Care fixes GMC G3500 engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 1988 GMC G3500

Learn about

1988 GMC G3500 Trim Options

Select your GMC G3500 trim level to learn more about GMC-recommended engine repair. Even GMC G3500 parts will get older and change.

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. When something breaks or fails, we’re ready to help. Select a service or repair below to learn more about what we can do for your 1988 GMC G3500.

We Know GMC G3500 Engines

GMC G3500 engines are known for their reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. If they do, you’ll have to find a dependable 1988 GMC service center — quick! Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. 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. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Check Engine Light on 1988 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 fuel, 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 G3500 issues diagnosed and our expert techs will get the root of the problem. engine rattling, oil leaks, or a sinking feeling that something’s wrong.

1988 G3500 Engine Services

If your 1988 G3500 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. 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 provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for GMC G3500 engine repairs and you can drive easy knowing that we use GMC-approved parts and fluids — timing belt, engine oil seal, fuses, or a different component.

Questions About 1988 GMC G3500 Engines

Why does the check engine light come on when I start my G3500? 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 dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are GMC G3500 engine noises bad? Strange engine sounds can be a sign something’s off in your GMC G3500. 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 a sign of brake problems rather than engine issues.
What could damage my GMC G3500 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my GMC G3500 radiator? It’s not recommended you put water in your G3500 radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
What could cause my G3500 engine to suddenly stop? Your G3500 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who repairs GMC G3500 engines? Your local Firestone Complete Auto Care fixes GMC G3500 engines. Book an appointment today! We have thousands of locations across the country.