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

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 go off shortly. Bring your vehicle in if it doesn't.

Why is my Oldsmobile Cutlass Supreme making engine noise?

Strange engine sounds can be a sign something’s off in your Oldsmobile Cutlass Supreme. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Oldsmobile Cutlass Supreme 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my Oldsmobile Cutlass Supreme radiator?

It’s not recommended you put water in your Cutlass Supreme 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 Cutlass Supreme engine to suddenly stop?

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

Who fixes Oldsmobile Cutlass Supreme engines?

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

Engine Repairs for Your 1991 Oldsmobile Cutlass Supreme

Learn about

1991 Oldsmobile Cutlass Supreme Trim Options

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

L4/2.3L

V6/3.1L

V6/3.4L

Repairs for Your 1991 Oldsmobile Cutlass Supreme

Nothing lasts forever. Even your Oldsmobile Cutlass Supreme’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 1991 Oldsmobile Cutlass Supreme services.

We Care for Oldsmobile Cutlass Supreme Engines

Oldsmobile Cutlass Supreme engines are known for their reliability. That might be why you bought it in the first place. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. If they do, you’ll have to find a dependable 1991 Oldsmobile service center — quick! That's when it's time to head to Firestone Complete Auto Care. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Oldsmobile Cutlass Supreme engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 1991 Oldsmobile Cutlass Supreme

As soon as your Cutlass Supreme 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 combustion, Possible causes can include a failing oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your Cutlass Supreme in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. Other signs it's time for Oldsmobile Cutlass Supreme engine service might include burning smells, or a sinking feeling that something’s wrong.

Oldsmobile Cutlass Supreme Engine Repair

When your Oldsmobile Cutlass Supreme engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a repair can wait, we'll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We seek to give you all the info you need to make a smart decision about our services. Turn to Firestone Complete Auto Care for your 1991 Cutlass Supreme engine repairs and you can feel good knowing that we only use Oldsmobile-compliant replacement parts such as the cambelt, oil gasket, fuses, or a different component.

1991 Oldsmobile Cutlass Supreme Engine Q&A

Why does the check engine light come on when I start my Cutlass Supreme? 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 go off shortly. Bring your vehicle in if it doesn't.
Why is my Oldsmobile Cutlass Supreme making engine noise? Strange engine sounds can be a sign something’s off in your Oldsmobile Cutlass Supreme. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Oldsmobile Cutlass Supreme 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my Oldsmobile Cutlass Supreme radiator? It’s not recommended you put water in your Cutlass Supreme 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 Cutlass Supreme engine to suddenly stop? If your Cutlass Supreme car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who fixes Oldsmobile Cutlass Supreme engines? Your local Firestone Complete Auto Care has you covered with expert Cutlass Supreme engine repair. Schedule an appointment today and see us at one of our thousands of locations.