Why does the check engine light in my LeSabre 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 LeSabre firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why does my Buick engine sound different?

Unusual noises can signal a problem with your Buick LeSabre engine. 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 might be coming from the brakes, not the engine.

What could damage my Buick LeSabre engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas 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 LeSabre radiator?

While it’s not recommended, you can use water in your LeSabre 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 a LeSabre engine to suddenly stop?

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

Who can repair my Buick LeSabre engine?

For Buick LeSabre 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.

1986 Buick LeSabre Engine Repair

Learn about

1986 Buick LeSabre Trim Options

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

V6/3.0L

V6/3.8L

V8/5.0L

1986 Buick LeSabre Repair

Nothing lasts forever. Even your Buick LeSabre’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 1986 Buick LeSabre services.

We’re Trained to Care for Buick LeSabre Engines

Buick LeSabre drivers trust that their LeSabre will take them near and far. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1986 Buick 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 Buick LeSabre engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Check Engine Light on 1986 Buick LeSabre

If your LeSabre 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 car’s ignition, Possible causes can include a failing oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your LeSabre in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs your Buick LeSabre engine needs some TLC are essential fluid leaks, or misfiring.

1986 LeSabre Engine Services

If your 1986 Buick LeSabre needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. 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 want to provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for Buick LeSabre engine repairs and you can drive easy knowing that we use Buick-approved parts and fluids — cambelt, motor oil seal, fuses, or another part.

1986 Buick LeSabre Engine Q&A

Why does the check engine light in my LeSabre 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 LeSabre firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why does my Buick engine sound different? Unusual noises can signal a problem with your Buick LeSabre engine. 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 might be coming from the brakes, not the engine.
What could damage my Buick LeSabre engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas 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 LeSabre radiator? While it’s not recommended, you can use water in your LeSabre 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 a LeSabre engine to suddenly stop? Your LeSabre car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who can repair my Buick LeSabre engine? For Buick LeSabre 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.