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

It's okay if your check engine light comes on when you first start your vehicle. 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 LaCrosse engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to 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 LaCrosse engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my Buick LaCrosse radiator?

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

If your LaCrosse 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 can repair my Buick LaCrosse engine?

Your local Firestone Complete Auto Care offers Buick LaCrosse engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Reliable Repairs for 2005 Buick LaCrosse Engines

Learn about

2005 Buick LaCrosse Trim Options

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

V6/3.6L

V6/3.8L

2005 Buick LaCrosse Repair

Stuff wears out. Even your Buick LaCrosse’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 2005 Buick LaCrosse repairs.

We’re Trained to Care for Buick LaCrosse Engines

Buick LaCrosse drivers trust that their LaCrosse will take them near and far. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Things can go wrong on the road. If they do, you’ll have to find a dependable 2005 Buick service center — quick! 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 Buick LaCrosse 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 2005 Buick LaCrosse

If your LaCrosse check engine light is on, it’s time to get it looked at. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission control system that won’t go away on its own. Causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your LaCrosse issues diagnosed and we'll determine exactly why your check engine light is on. engine rattling, burning smells, or misfiring.

Buick LaCrosse Engine Repair

If your 2005 Buick LaCrosse needs engine repair, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. If a service can wait, we’ll make sure 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 LaCrosse engine repairs and you can drive easy knowing that we use Buick-approved parts and fluids — serpentine belt, oil gasket, sensors, or other parts.

2005 Buick LaCrosse Engine Q&A

Why does the check engine light come on when I start my LaCrosse? It's okay if your check engine light comes on when you first start your vehicle. 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 LaCrosse engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to 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 LaCrosse engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my Buick LaCrosse radiator? While it’s not recommended, you can use water in your LaCrosse 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 LaCrosse to suddenly stop? If your LaCrosse 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 can repair my Buick LaCrosse engine? Your local Firestone Complete Auto Care offers Buick LaCrosse engine repair. Schedule an appointment today at one of our thousands of locations nationwide!