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

It’s usually normal for your check engine light to turn on upon ignition. 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 does my Buick engine sound different?

Strange under-the-hood noises can point to problems within your Buick Riviera engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Buick Riviera engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car 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 put water in my Buick Riviera radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Riviera when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my Riviera engine to suddenly stop?

Reasons your Riviera car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who repairs Buick Riviera engines?

For Buick Riviera engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Engine Repairs for Your 1991 Buick Riviera

Learn about

1991 Buick Riviera Trim Options

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

V6/3.8L

Repairs for Your 1991 Buick Riviera

Nothing stays the same forever. Even your Buick Riviera’s engine parts and components will change. 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 1991 Buick Riviera.

We Know Buick Riviera Engines

Buick Riviera engines are known for their reliability. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go wrong on the road. When they do, you might find yourself searching for 1991 Buick Riviera engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Buick Riviera engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Check Engine Light on 1991 Buick Riviera

As soon as your Riviera check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission system, and it won’t go away by ignoring it. Causes may include a faulty oxygen sensor, bad spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your Riviera in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs your Buick Riviera engine needs some TLC are burning smells, or engine misfiring.

Buick Riviera Engine Repair

If your 1991 Buick Riviera needs engine repair, 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 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 Buick Riviera engine repairs and you can feel good knowing that we only use Buick-compliant replacement parts such as the timing chain or belt, motor oil seal, fuses, or another part.

Questions About 1991 Buick Riviera Engines

Why does the check engine light in my Riviera turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. 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 does my Buick engine sound different? Strange under-the-hood noises can point to problems within your Buick Riviera engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Buick Riviera engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car 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 put water in my Buick Riviera radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Riviera when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my Riviera engine to suddenly stop? Reasons your Riviera car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs Buick Riviera engines? For Buick Riviera engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.