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

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Blazer testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why is my Chevrolet Blazer making engine noise?

Strange engine sounds can be a sign something’s off in your Chevrolet Blazer. Tapping or knocking could mean you're low on oil. 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 Chevrolet Blazer 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 accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Is it okay to put water in my Chevrolet Blazer radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

Why did my Blazer engine suddenly stop?

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

Where can I go for Chevrolet Blazer repair?

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

2003 Chevrolet Blazer Engine Repair

Learn about

2003 Chevrolet Blazer Trim Options

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

V6/4.3L

Repairs for Your 2003 Chevrolet Blazer

Stuff wears out. Even your Chevrolet Blazer’s engine parts and components will change. When something breaks, we're ready. Click on a repair below to learn more about 2003 Chevrolet Blazer repairs.

We Know Chevrolet Blazer Engines

Chevrolet Blazer 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. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2003 Chevrolet Blazer engine repairs. That's when it's time to head to Firestone Complete Auto Care. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Chevrolet Blazer engine will be in good hands. 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.

My 2003 Chevrolet Blazer Check Engine Light Is On

An illuminated check engine light on your Chevrolet Blazer is one of the first signs it's time to 'brake' for engine service. A steady or flashing check engine light could signal a serious issue with your vehicle's ignition, Potential causes may include a faulty oxygen sensor, worn spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your Blazer to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. rattling sounds, essential fluid leaks, or a sinking feeling that something’s wrong.

2003 Blazer Engine Services

If your 2003 Blazer engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. 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 want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2003 Blazer engine repairs and you can feel good knowing that we only use Chevrolet-compliant replacement parts such as the timing belt, engine oil seal, ignition coil, or other parts.

Questions About 2003 Chevrolet Blazer Engines

Why does the check engine light in my Blazer turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Blazer testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why is my Chevrolet Blazer making engine noise? Strange engine sounds can be a sign something’s off in your Chevrolet Blazer. Tapping or knocking could mean you're low on oil. 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 Chevrolet Blazer 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 accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Is it okay to put water in my Chevrolet Blazer radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
Why did my Blazer engine suddenly stop? Reasons your Blazer car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Where can I go for Chevrolet Blazer repair? Your local Firestone Complete Auto Care offers Chevrolet Blazer engine repair. Schedule an appointment today at one of our thousands of locations nationwide!